New Juno image of Jupiter taken on Dec. 11, 2016. Processed by Damian Peach
Astro-imager Damian Peach reprocessed one of the latest images taken by Juno’s JunoCam during its 3rd close flyby of the planet on Dec. 11. The photo highlights one of the large ‘pearls’ (right) that forms a string of storms in Jupiter’s atmosphere. A smaller isolated storm is seen at left. Credit: NASA/JPL-Caltech/SwRI/MSSS
Jupiter looks beautiful in pearls! This image, taken by the JunoCam imager on NASA’s Juno spacecraft, highlights one of the eight massive storms that from a distance form a ‘string of pearls’ on Jupiter’s turbulent atmosphere. They’re counterclockwise rotating storms that appear as white ovals in the gas giant’s southern hemisphere. The larger pearl in the photo above is roughly half the size of Earth. Since 1986, these white ovals have varied in number from six to nine with eight currently visible.
Four more ‘pearls’ photographed on Dec. 10, 2016 in the planet’s South Temperate Belt below the Great Red Spot. The moon Ganymede is at left. The show up well in photos but require good seeing and at least and 8-inch telescope to see visually. Credit: Christopher Go
The photos were taken during Sunday’s close flyby. At the time of closest approach — called perijove — Juno streaked about 2,580 miles (4,150 km) above the gas giant’s roiling, psychedelic cloud tops traveling about 129,000 mph or nearly 60 km per second relative to the planet. Seven of Juno’s eight science instruments collected data during the flyby. At the time the photos were taken, the spacecraft was about 15,300 miles (24,600 km) from the planet.
This is the original image sent by JunoCam on Dec. 11 and features the eighth in a string of large storms in the planet’s southern hemisphere. Credit: NASA/JPL-Caltech/SwRI/MSSS
JunoCam is a color, visible-light camera designed to capture remarkable pictures of Jupiter’s poles and cloud tops. As Juno’s eyes, it will provide a wide view, helping to provide context for the spacecraft’s other instruments. JunoCam was included on the spacecraft specifically for purposes of public engagement; although its images will be helpful to the science team, it is not considered one of the mission’s science instruments.
4-frame animation spans 24 Jovian days, or about 10 Earth days. The passage of time is accelerated by a factor of 600,000. Some of the ovals are visible as well as a variety of jets – west to east and east to west. Credit: NASA
The crazy swirls of clouds we see in the photos are composed of ammonia ice crystals organized into a dozen or so bands parallel to the equator called belts (the darker ones) and zones. The border of each is bounded by a powerful wind flow called a jet, resembling Earth’s jet streams, which alternate direction from one band to the next.
Zones are colder and mark latitudes where material is upwelling from below. Ammonia ice is thought to give the zones their lighter color. Belts in contrast indicate sinking material; their color is a bit mysterious and may be due to the presence of hydrocarbons — molecules that are made from hydrogen, carbon, and oxygen as well as exotic sulfur and phosphorus compounds.
Use this guide to help you better understand Jupiter’s arrangement of belts and zones, many of which are visible in amateur telescopes. Credit: NASA/JPL/Wikipedia
The pearls or storms form in windy Jovian atmosphere and can last many decades. Some eventually dissipate while others merge to form even larger storms. Unlike hurricanes, which fall apart when they blow inland from the ocean, there’s no “land” on Jupiter, so storms that get started there just keep on going. The biggest, the Great Red Spot, has been hanging around causing trouble and delight (for telescopic observers) for at least 350 years.
Juno’s next perijove pass will happen on Feb. 2, 2017.
The primary mirror of the James Webb Space Telescope, in all its gleaming glory! Image: NASA/Chris Gunn
NASA has some high hopes for the James Webb Space Telescope, which finished the “cold” phase of its construction at the end of November 2016. The result of 20 years of engineering and construction, this telescope is seen as Hubble’s natural successor. Once it is deployed in October of 2018, it will use a 6.5 meter (21 ft 4 in) primary mirror to examine the Universe in the visible, near-infrared, and mid-infrared wavelengths.
All told, the JWST will be 100 times more powerful than its predecessor and will be capable of looking over 13 billion years in time. To honor the completion of the telescope, Northrop Grumman – the company contracted by NASA to build it – and Crazy Boat Pictures teamed up to produce a short film about it. Titled “Into the Unknown – the Story of NASA’s James Webb Space Telescope“, the video chronicles the project from inception to completion.
The film (which you can watch at the bottom of the page) shows the construction of the telescope’s large mirrors, its instrument package, and its framework. It also features conversations with the scientists and engineers who were involved and some stunning visuals. In addition to detailing the creation process, the film also delves into the telescope’s mission and all the cosmological questions it will address.
In addressing the nature of James Webb’s mission, the film also pays homage to the Hubble Space Telescope and its many accomplishments. Over the course of its 26 years of operation, it has revealed auroras and supernovas and discovered billions of stars, galaxies, and exoplanets, some of which were shown to orbit within their star’s respective habitable zones.
On top of that, Hubble was used to determine the age of the Universe (13.8 billion years) and confirmed the existence of the supermassive black hole (SMBH) – Sagittarius A* – at the center of our galaxy, not to mention many others. It was also responsible for measuring the rate at which the Universe is expanding – in other words, measuring the Hubble Constant.
This played a pivotal role in helping scientists to develop the theory of Dark Energy, one of the most profound discoveries since Edwin Hubble (the telescope’s namesake) proposed that the Universe is in a state of expansion back in 1929. So it goes without saying that the deployment of the Hubble Space Telescope led to some of the greatest discoveries in modern astronomy.
That being said, Hubble is still subject to limitations, which astronomers are now hoping to push past. For one, its instruments are not able to pick up the most distant (and hence, dimmest) galaxies in the Universe, which date to just a few hundred million years after the Big Bang. Even with “The Deep Fields” initiative, Hubble is still limited to seeing back to about half a billion years after the Big Bang.
Illustration of the depth by which Hubble imaged galaxies in prior Deep Field initiatives in units of the Age of the Universe. Credit: NASA and A. Feild (STScI)
As Dr. John Mather, the project scientist for the James Webb Telescope, told Universe Today via email:
“Hubble showed us that we could not see the first galaxies being born, because they’re too far away, too faint, and too red. JWST is bigger, colder, and observes infrared light to see those first galaxies. Hubble showed us there’s a black hole in the center of almost every galaxy. JWST will look as far back in time as possible to see when and how that happened: did the galaxy form the black hole, or did the galaxy grow around a pre-existing black hole? Hubble showed us great clouds of glowing gas and dust where stars are being born. JWST will look through the dust clouds to see the stars themselves as they form in the cloud. Hubble showed us that we can see some planets around other stars, and that we can get chemical information about other planets that happen to pass directly in front of their stars. JWST will extend this to longer wavelengths with a bigger telescope, with a possibility of detecting water on a super-Earth exoplanet. Hubble showed us details of planets and asteroids close to home, and JWST will give a closer look, though it’s still better to send a visiting robot if we can.”
Basically, the JWST will be able to see farther back to about 100 million years after the Big Bang, when the first stars and galaxies were born. It is also designed to operate at the L2 Lagrange Point, farther away from the Earth than Hubble – which was designed to remain in low-Earth orbit. This means the JWST will be subject to less thermal and optical interference from the Earth and the Moon, but will also make it more difficult to service.
With its much larger set of segmented mirrors, it will observe the Universe as it captures light from the first galaxies and stars. Its extremely-sensitive suite of optics will also be able to gather information in the long-wavelength (orange-red) and infrared wavelengths with greater accuracy, measuring the redshift of distant galaxies and even helping in the hunt for extra-solar planets.
A primary mirror segments of the James Webb Space Telescope, made of beryllium. Credit: NASA/MSFC/David Higginbotham/Emmett Given
With the assembly of its major components now complete, the telescope will spend the next two years undergoing tests before its scheduled launch date in October 2018. These will include stress tests that will subject the telescope to the types of intense vibrations, sounds, and g forces (ten times Earth’s gravity) it will experience inside the Ariane 5 rocket that will take it into space.
Six months before its deployment, NASA also plans to send the JWST to the Johnson Space Center, where it will be subjected to the kinds of conditions it will experience in space. This will consist of scientists placing the telescope in a chamber where temperatures will be lowered to 53 K (-220 °C; -370 °F), which will simulate its operating conditions at the L2 Lagrange Point.
Once all of that is complete, and the JWST checks out, it will be launched aboard an Ariane 5 rocket from Arianespace’s ELA-3 launch pad in French Guayana. And thanks to experience gained from Hubble and updated algorithms, the telescope will be focused and gathering information shortly after it is launched. And as Dr. Mather explained, the big cosmological questions it is expected to address are numerous:
“Where did we come from? The Big Bang gave us hydrogen and helium spread out almost uniformly across the universe. But something, presumably gravity, stopped the expansion of the material and turned it into galaxies and stars and black holes. JWST will look at all these processes: how did the first luminous objects form, and what were they? How and where did the black holes form, and what did they do to the growing galaxies? How did the galaxies cluster together, and how did galaxies like the Milky Way grow and develop their beautiful spiral structure? Where is the cosmic dark matter and how does it affect ordinary matter? How much dark energy is there, and how does it change with time?”
Needless to say, NASA and the astronomical community are quite excited that the James Webb Telescope is finished construction, and can’t wait until it is deployed and begins to send back data. One can only imagine the kinds of things it will see deep in the cosmic field. But in the meantime, be sure to check out the film and see how this effort all came together:
Alan Stern’s 2006 Nissan 350Z and Percival Lowell’s 1912 car in front of the Lowell Observatory. Percival Lowell’s car nicknamed his car “Big Red,” and Stern’s car is nicknamed “New Red.” Credit: Lowell Observatory
Many of the rocket and space flight enthusiasts I know are also car buffs. If you fit into that category, here’s an opportunity you won’t want to miss: a chance to own the car that New Horizons principal investigator Alan Stern drove all the way to Pluto.
Well, technically, he drove his shiny red Nissan 350Z the entire time the New Horizons’ spacecraft was making a beeline for the icy dwarf planet. But Stern has now donated this car to the Lowell Observatory, the facility where Pluto was discovered. The car is being auctioned off on eBay, with proceeds going to support “Lowell’s mission of scientific research and education.” You can make your bid now, as bids are being accepted from December 15-24, and the winner will not only have the privilege of owning the car, but also enjoy a dinner with Stern.
New Horizons Principal Investigator Alan Stern and the Nissan sports car he has donated to the Lowell Observatory for a fundraiser. Credit: Lowell Observatory.
Stern bought the car in 2006, the year New Horizons launched (it has a bumper sticker that says “My other vehicle is on its way to Pluto”) and he continued driving it until earlier this year, well past the spacecraft’s flyby of Pluto in July 2015.
It is a two-door model with red exterior and carbon interior, and has just over 77,000 miles on it, which, as Stern points out, is almost 10 times fewer miles than New Horizons clocked on its first day of flight. A November 9, 2016 appraisal states the vehicle is in excellent shape and has a life expectancy of 300,000 miles.
“It was Percival Lowell’s perseverance and dedication that resulted in the discovery of Pluto and, ultimately, resulted in the flight of New Horizons to explore this distant, small planet,” Stern said in a press release from the Lowell Observatory. “New Horizons was, and is, the best aspect of my career so far, so I wanted to donate this car to Lowell Observatory as a fundraising vehicle to recognize the fact that New Horizons could not have happened without the historic and pioneering work that took place at Lowell Observatory early in the last century.”
Bumper sticker on Alan Stern’s car. Credit: Lowell Observatory.
Stern was the impetus behind New Horizons, billed as the fastest spacecraft ever launched, so he calls the Nissan 350Z his “second fastest vehicle.” He still oversees the New Horizons mission, as the spacecraft continues on its journey through the Kuiper Belt. It will fly past another object, named 2014 MU69, which Stern said is an ancient KBO that formed where it orbits now.
“It’s the type of object scientists have been hoping to study for decades, and this will be the most distant world we’ve ever been able to see up close,” Stern told me during an interview for my upcoming book, “Incredible Stories From Space.” Chapter 1 tells the stories of the New Horizons mission, including many stories from Stern.
With a penchant for both creating and driving state-of-the-art vehicles, Stern revealed earlier this year that his new car is a Tesla.
Lowell director Jeff Hall said, “It’s been a real pleasure working with Alan over the past few years leading up to and past the Pluto flyby. He’s been tremendously supportive of Lowell, and his donation of his car for us to auction is a sterling example of this. We’re thrilled by this gesture, and we look forward to meeting the lucky winner.”
The Lowell Observatory was founded in 1894 by Percival Lowell and has been home to many important discoveries including the detection of the large recessional velocities (redshift) of galaxies by Vesto Slipher in 1912-1914 (a result that led to the realization the universe is expanding), and the discovery of Pluto by Clyde Tombaugh in 1930. Today, Lowell’s 14 astronomers use ground-based telescopes around the world, telescopes in space, and NASA planetary spacecraft to conduct research in astronomy and planetary science. Lowell is a private, non-profit research institution and is located near Flagstaff, Arizona.
SpaceX Crew Dragon docks at the ISS. Credit: SpaceX
SpaceX Dragon V2 docks at the ISS. Credit: SpaceX
KENNEDY SPACE CENTER, FL – Launching Americans back to space and the International Space Station (ISS) from American soil on American rockets via NASA’s commercial crew program (CCP) has just suffered another significant but not unexpected delay, with an announcement from NASA that the target date for inaugural crewed flight aboard a SpaceX commercial Crew Dragon has slipped significantly from 2017 to 2018.
NASA announced the revised schedule on Dec. 12 and SpaceX media affairs confirmed the details of the launch delay to Universe Today.
The postponement of the demonstration mission launch is the latest fallout from the recent launch pad explosion of a SpaceX Falcon 9 rocket at Cape Canaveral, Florida, on Sept. 1 during final preparations and fueling operations for a routine preflight static fire test.
Since the Falcon 9 is exactly the same booster that SpaceX will employ to loft American astronauts in the SpaceX Crew Dragon to the space station, the stakes could not be higher with astronauts lives on the line.
Blastoff of the first Crew Dragon spacecraft on its first unmanned test flight is postponed from May 2017 to August 2017, according to the latest quarterly revision just released by NASA. Liftoff of the first piloted Crew Dragon with a pair of NASA astronauts strapped in has slipped from August 2017 to May 2018.
“The Commercial crew updated dates for Demo 1 (no crew) is Q4 2017,” SpaceX’s Phil Larson told Universe Today. “For Demo 2 (with 2 crew members) the updated commercial crew date is Q2 2018 [for Crew Dragon].”
Meet Dragon V2 – SpaceX CEO Elon pulls the curtain off manned Dragon V2 on May 29, 2014 for worldwide unveiling of SpaceX’s new astronaut transporter for NASA. Credit: SpaceX
Although much has been accomplished since NASA’s commercial crew program started in 2010, much more remains to be done before NASA will approve these launches.
“The next generation of American spacecraft and rockets that will launch astronauts to the International Space Station are nearing the final stages of development and evaluation,” said NASA KSC public affairs officer Stephanie Martin.
Above all both of the commercial crew providers – namely Boeing and SpaceX – must demonstrate safe, reliable and robust spacecraft and launch systems.
“NASA’s Commercial Crew Program will return human spaceflight launches to U.S. soil, providing reliable and cost-effective access to low-Earth orbit on systems that meet our safety and mission requirements. To meet NASA’s requirements, the commercial providers must demonstrate that their systems are ready to begin regular flights to the space station.”
SpaceX Falcon 9 rocket moments after catastrophic explosion destroys the rocket and Amos-6 Israeli satellite payload at launch pad 40 at Cape Canaveral Air Force Station, FL, on Sept. 1, 2016. A static hot fire test was planned ahead of scheduled launch on Sept. 3, 2016. Credit: USLaunchReport
These latest launch delays come on top of other considerable delays announced earlier this year when SpaceX has still hoping to launch the unpiloted Crew Dragon mission before the end of 2016 – prior to the Sept 1 launch pad catastrophe.
“We are finalizing the investigation of our Sept. 1 anomaly and are working to complete the final steps necessary to safely and reliably return to flight,” Larson told me.
“As this investigation has been conducted, our Commercial Crew team has continued to work closely with NASA and is completing all planned milestones for this period.”
SpaceX is still investigating the root causes of the Sept. 1 anomaly, working on fixes and implementing any design changes – as well as writing the final report that must be submitted to the FAA, before they can launch the planned ‘Return to Flight’ mission from their California launch pad at Vandenberg Air Force Base.
No launch can occur until the FAA grants a license after fully assessing the SpaceX anomaly report.
Last week SpaceX announced a delay in resuming launches at Vandenberg until no earlier than January 2017.
“We are carefully assessing our designs, systems, and processes taking into account the lessons learned and corrective actions identified. Our schedule reflects the additional time needed for this assessment and implementation,” Larson elaborated.
Launch of SpaceX Falcon 9 carrying JCSAT-16 Japanese communications satellite to orbit on Aug. 14, 2016 at 1:26 a.m. EDT from Space Launch Complex 40 at Cape Canaveral Air Force Station, Fl. Credit: Ken Kremer/kenkremer.com
Boeing has likewise significantly postponed their debut unpiloted and piloted launches of their CST-100 Starliner astronaut space taxi by more than six months this year alone.
The first crewed Boeing Starliner is now slated for a launch in August 2018, possibly several months after SpaceX. But the schedules keep changing so it’s anyone’s guess as to when these commercial crew launches will actually occur.
Another big issue that has cropped up since the Sept. 1 pad disaster, regards the procedures and timing for fueling the Falcon 9 rocket with astronauts on board. SpaceX is proposing to load the propellants with the crew already on board, unlike the practice of the past 50 years where the astronauts climbed aboard after the extremely dangerous fueling operation was completed.
SpaceX proposes this change due to their recent use of superchilled liquid oxygen and resulting new operational requirement to fuel the rocket in the last 30 minutes prior to liftoff.
Although a SpaceX hazard report outlining these changes was approved by NASA’s Safety Technical Review Board in July 2016, an objection was raised by former astronaut Maj. Gen. Thomas Stafford and the International Space Station Advisory Committee.
“SpaceX has designed a reliable fueling and launch process that minimizes the duration and number of personnel exposed to the hazards of launching a rocket,” Larson explained.
“As part of this process, the crew will safely board the Crew Dragon, ground personnel will depart, propellants will be carefully loaded and then the vehicle will launch. During this time the Crew Dragon launch abort system will be enabled.”
SpaceX says they have performed a detailed safety analysis with NASA of all potential hazards with this process.
“The hazard report documenting the controls was approved by NASA’s Safety Technical Review Board in July 2016.”
SpaceX representatives recently met with Stafford and the ISS review board to address their concerns, but the outcome and whether anything was resolved is not known.
“We recently met with Maj. Gen. Stafford and the International Space Station Advisory Committee to provide them detailed information on our approach and answer a number of questions. SpaceX and NASA will continue our ongoing assessment while keeping the committee apprised of our progress,” Larson explained.
The Falcon 9 fueling procedure issue relating to astronaut safety must be satisfactorily resolved before any human launch with Dragon can take place, and will be reported on further here.
Whenever the Crew Dragon does fly it will launch from the Kennedy Space Center (KSC) at Launch Complex 39A – the former shuttle launch pad which SpaceX has leased from NASA.
SpaceX is renovating Launch Complex 39A at the Kennedy Space Center for launches of the Falcon Heavy and human rated Falcon 9. Credit: Ken Kremer/kenkremer.com
SpaceX is currently renovating pad 39A for launches of manned Falcon 9/Dragon missions. And the firm has decided to use it for commercial missions as well while pad 40 is repaired following the pad accident.
This week a Falcon 9 first stage was spotted entering Cape Canaveral to prepare for an upcoming launch.
SpaceX Falcon 9 first stage arrives at Cape Canaveral Air Force Station on Dec. 12, 2016 for launch sometime in 2017. Credit: Julian Leek
Getting our astronauts back to space with home grown technology is proving to be far more difficult and time consuming than anyone anticipated – despite the relative simplicity of developing capsule-like vehicles vs. NASA’s highly complex and hugely capable Space Shuttle vehicles.
And time is of the essence for the commercial crew program.
Because for right now, the only path to the ISS for all American astronauts is aboard a Russian Soyuz capsule through seats purchased by NASA – at about $82 million each. But NASA’s contract with Roscosmos for future flight opportunities runs out at the end of 2018. So there is barely a few months margin left before the last available contracted seat is taken.
It takes about 2 years lead time for Russia to build the Soyuz and NASA is not planning to buy any new seats.
So any further delays to SpaceX or Boeing could result in an interruption of US and partner flights to the ISS in 2019 – which is primarily American built.
Exterior of the Crew Dragon capsule. Credit: SpaceX.
Since its inception, the commercial crew program has been severely and shortsightedly underfunded by the US Congress. They have repeatedly cut the Administration’s annual budget requests, delaying forward progress and first crewed flights from 2015 to 2018, and forcing NASA to buy additional Soyuz seats from Russia at a cost of hundreds of millions of dollars.
Stay tuned here for Ken’s continuing Earth and Planetary science and human spaceflight news.
An Orbital ATK L-1011 “Stargazer” aircraft carrying a Pegasus XL rocket with NASA’s CYGNSS spacecraft takes off from the Skid Strip at Cape Canaveral Air Force Station, Florida on Dec. 12, 2016. Credit: Ken Kremer/kenkremer.com
An Orbital ATK L-1011 “Stargazer” aircraft carrying a Pegasus XL rocket with NASA’s CYGNSS spacecraft takes off from the Skid Strip at Cape Canaveral Air Force Station, Florida on Dec. 12, 2016. Credit: Ken Kremer/kenkremer.com
KENNEDY SPACE CENTER, FL – Monday’s (Dec. 12) planned launch of NASA’s innovative Cyclone Global Navigation Satellite System (CYGNSS) hurricane microsatellite fleet was aborted when a pump in the hydraulic system that releases the Pegasus air-launch booster from its L-1011 carrier aircraft failed in flight. UPDATE: launch delayed to Dec 15, story revised
NASA and Orbital ATK confirmed this afternoon that the launch of the Orbital ATK commercial Pegasus-XL rocket carrying the CYGNSS small satellite constellation has been rescheduled again to Thursday, Dec. 15 at 8:26 a.m. EST from a drop point over the Atlantic Ocean.
Late last night the launch was postponed another day from Dec. 14 to Dec. 15 to solve a flight parameter issue on the CYGNSS spacecraft. New software was uploaded to the spacecraft that corrected the issue, NASA officials said.
“NASA’s launch of CYGNSS spacecraft is targeted for Thursday, Dec. 15,” NASA announced.
“We are go for launch of our #Pegasus rocket carrying #CYGNSS tomorrow, December 15 from Cape Canaveral Air Force Station,” Orbital ATK announced.
An Orbital ATK L-1011 “Stargazer” aircraft carrying a Pegasus XL rocket with NASA’s CYGNSS spacecraft takes off from the Skid Strip at Cape Canaveral Air Force Station, Florida on Dec. 12. Credit: Ken Kremer/kenkremer.com
“The CYGNSS constellation consists of eight microsatellite observatories that will measure surface winds in and near a hurricane’s inner core, including regions beneath the eyewall and intense inner rainbands that previously could not be measured from space,” according to a NASA factsheet.
Despite valiant efforts by the flight crew to restore the hydraulic pump release system to operation as the L-1011 flew aloft near the Pegasus drop zone, they were unsuccessful before the launch window ended and the mission had to be scrubbed for the day by NASA Launch Director Tim Dunn.
The Pegasus/CYGNSS vehicle is attached to the bottom of the Orbital ATK L-1011 Stargazer carrier aircraft.
Orbital ATK L-1011 “Stargazer” aircraft carrying a Pegasus XL rocket with NASA’s CYGNSS spacecraft takes off from the Skid Strip at Cape Canaveral Air Force Station, Florida on Dec. 12, 2016. Credit: Ken Kremer/kenkremer.com
The hydraulic release system passed its pre-flight checks before takeoff of the Stargazer.
“Launch of the Pegasus rocket was aborted due to an issue with the launch vehicle release on the L-1011 Stargazer. The hydraulic release system operates the mechanism that releases the Pegasus rocket from the carrier aircraft. The hydraulic system functioned properly during the pre-flight checks of the airplane,” said NASA.
A replacement hydraulic pump system component was flown in from Mojave, California, and successfully installed and checked out. Required crew rest requirements were also met.
Technician works on Orbital ATK Pegasus XL rocket with NASA’s CYGNSS payload on board on Dec. 10, 2016 in this rear side view showing the first stage engine. They are mated to the bottom of the Orbital ATK L-1011 Stargazer aircraft at the Skid Strip at Cape Canaveral Air Force Station in Florida. Launch is slated for Dec. 12, 2016. Credit: Ken Kremer/kenkremer.com
The one-hour launch window opens at 8:20 a.m and the actual deployment of the rocket from the L-1011 Tristar is timed to occur 5 minutes into the window at 8:26 a.m.
NASA’s Pegasus/CYGNUS launch coverage and commentary will be carried live on NASA TV – beginning at 7 a.m. EDT
Orbital ATK is also providing launch and mission update at:
twitter.com/OrbitalATK
The weather forecast from the Air Force’s 45th Weather Squadron at Cape Canaveral has significantly increased to predicting a 90% chance of favorable conditions on Thursday, Dec. 15.
The primary weather concerns are for flight cumulus clouds.
The Pegasus rocket cannot fly through rain or clouds due to a negative impact and possible damage on the rocket’s thermal protection system (TPS).
In the event of a delay, the range is also reserved for Friday, Dec. 16 where the daily outlook remains at a 90% chance of favorable weather conditions.
Rear view into the first stage engine of Orbital ATK Pegasus XL rocket that will launch NASA’s CYGNSS experimental hurricane observation payload on Dec. 14, 2016. They are mated to the bottom of the Orbital ATK L-1011 Stargazer aircraft at the Skid Strip at Cape Canaveral Air Force Station in Florida. Credit: Ken Kremer/kenkremer.com
After Stargazer takes off from the Skid Strip early Thursday around 6:30 a.m. EST, it will fly north to a designated drop point box about 126 miles east of Daytona Beach, Florida over the Atlantic Ocean. The crew can search for a favorable launch point if needed, just as they did Monday morning.
The drop box point measures about 40-miles by 10-miles (64-kilometers by 16-kilometers). The flight crew flew through the drop box twice on Monday, about a half an hour apart, as they tried to repair the hydraulic system by repeatedly cycling it on and off and sending commands.
“It was not meeting the prescribed launch release pressures, indicating a problem with the hydraulic pump,” said NASA CYGNSS launch director Tim Dunn.
“Fortunately, we had a little bit of launch window to work with, so we did a lot of valiant troubleshooting in the air. As you can imagine, everyone wanted to preserve every opportunity to have another launch attempt today, so we did circle around the race once, resetting breakers on-board the aircraft, doing what we could in flight to try to get that system back into function again.”
The rocket will be dropped for a short freefall of about 5 seconds to initiate the launch sewuence. It launches horizontally in midair with ignition of the first stage engine burn, and then tilts up to space to begin the trek to LEO.
Here’s a schematic of key launch events:
Schematic of Orbital ATK L-1011 aircraft and Pegasus XL rocket air drop launch of NASA’s CYGNSS microsatellite fleet. Credit: Orbital ATK
The $157 million fleet of eight identical spacecraft comprising the Cyclone Global Navigation Satellite System (CYGNSS) system will be delivered to low Earth orbit by the Orbital ATK Pegasus XL rocket.
The nominal mission lifetime for CYGNSS is two years but the team says they could potentially last as long as five years or more if the spacecraft continue functioning.
Artist’s concept of the deployment of the eight Cyclone Global Navigation Satellite System (CYGNSS) microsatellite observatories in space. Credits: NASA
Pegasus launches from the Florida Space Coast are infrequent. The last once took place over 13 years ago in April 2003 for the GALEX mission.
Typically they take place from Vandenberg Air Force Base in California or the Reagan Test Range on the Kwajalein Atoll.
CYGNSS counts as the 20th Pegasus mission for NASA.
The CYGNSS spacecraft were built by Southwest Research Institute in San Antonio, Texas. Each one weighs approx 29 kg. The deployed solar panels measure 1.65 meters in length.
The solar panels measure 5 feet in length and will be deployed within about 15 minutes of launch.
The Orbital ATK L-1011 Stargazer aircraft at the Skid Strip at Cape Canaveral Air Force Station in Florida. Attached beneath the Stargazer is the Orbital ATK Pegasus XL with NASA’s CYGNSS payload on board, being processed for launch on Dec. 12, 2016. Credit: Ken Kremer/kenkremer.com
The Space Physics Research Laboratory at the University of Michigan College of Engineering in Ann Arbor leads overall mission execution in partnership with the Southwest Research Institute in San Antonio, Texas.
The Climate and Space Sciences and Engineering Department at the University of Michigan leads the science investigation, and the Earth Science Division of NASA’s Science Mission Directorate oversees the mission.
Stay tuned here for Ken’s continuing Earth and Planetary science and human spaceflight news.
Curiosity picture showing color variations on Mount Sharp, Mars. Credit: NASA/JPL
For over a year, the Curiosity rover has been making its way up the slopes of Mount Sharp, the central peak within the Gale Crater. As the rover moves higher along this formation, it has been taking drill samples so that it might look into Mars’ ancient past. Combined with existing evidence that water existed within the crater, this would have provided favorable conditions for microbial life.
And according to the most recent findings announced by the Curiosity science team, the upper levels of the mountain are rich in minerals that are not found at the lower levels. These findings reveal much about how the Martian environment has changed over the past few billion years, and are further evidence that Mars may have once been habitable.
The findings were presented at the Fall meeting of the American Geophysical Union (AGU), which began on Monday, Dec. 12th, in San Fransisco. During the meeting, John Grotzinger – the Fletcher Jones Professor of Geology at Caltech and the former Project Scientist for the Curiosity mission – and other members of Curiosity’s science team shared what the rover discovered while digging into mineral veins located in the higher, younger layers of Mount Sharp.
Artist’s illustration showing the Gale Crater as it appears today, with the Curiosity rover climbing Mount Sharp. Credit: NASA/JPL-Caltech
To put it simply, mineral veins are a great way to study the movements of water in an area. This is due to the fact that veins are the result of cracks in layered rock being filled with chemicals that are dissolved in water – a process which alters the chemistry and composition of rock formations. What the rover found was that at higher layers hematite, clay minerals and boron are more abundant than what has been observed at lower, older layers.
These latest findings paint a complex picture of the region, where groundwater interactions led to clay-bearing sediments and diverse minerals being deposited over time. As Grotzinger explained, this kind of situation is favorable as far as habitability is concerned:
“There is so much variability in the composition at different elevations, we’ve hit a jackpot. A sedimentary basin such as this is a chemical reactor. Elements get rearranged. New minerals form and old ones dissolve. Electrons get redistributed. On Earth, these reactions support life.”
At present, no evidence has been found that microbial life actually existed on Mars in the past. However, since it first landed back in 2012, the Curiosity mission has uncovered ample evidence that conditions favorable to life existed billions of years ago. This is possible thanks to the fact that Mount Sharp consists of layered sedimentary deposits, where each one is younger than the one beneath it.
The Gale Crater, billions of years ago, showing how the circulation of groundwater led to chemical changes and deposits. Credit: NASA/JPL-Caltech
These sedimentary layers act as a sort of geological and environmental record for Mars; and by digging into them, scientists are able to get an idea of what Mars’ early history looked like. In the past, Curiosity spent many years digging around in the lower layers, where it found evidence of liquid water and all the key chemical ingredients and energy needed for life.
Since that time, Curiosity has climbed higher along Mount Sharp and examined younger layers, the purpose of which has been to reconstruct how the Martian environment changed over time. As noted, the samples Curiosity recently obtained showed greater amounts of hematite, clay minerals and boron. All of these provide very interesting clues as to what kinds of changes took place.
For instance, compared to previous samples, hematite was the most dominant iron oxide mineral detected, compared to magnetite (which is a less-oxidized form of iron oxide). The presence of hematite, which increases with distance up the slope of Mount Sharp, suggests both warmer conditions and more interaction with the atmosphere at higher levels.
The increasing concentration of this minerals – relative to magnetite at lower levels – also indicates that environmental changes have occurred where the oxidation of iron increased over time. This process, in which more electrons are lost via chemical exchanges, can provide the energy necessary for life.
Hi-resolution pictures showing the Curiosity rover’s various drilling sites, up until Nov. 2016. Credit: NASA/JPL
In addition, Curiosity’s Chemistry and Camera (ChemCam) instrument has also noted increased (but still minute)) levels of borons within veins composed primarily of calcium sufate. On Earth, boron is associated with arid sites where water has evaporated, and its presence on Mars was certainly unexpected. No previous missions have ever detected it, and the environmental implications of it being present in such tiny amounts are unclear.
On the one hand, it is possible that evaporation within the lake bed created a boron-deposit deeper inside Mount Sharp. The movement of groundwater within could have then dissolved some of this, redepositing trace amounts at shallower levels where Curiosity was able to reach it. On the other hand, it could be that changes in the chemistry of clay-bearing deposits affected how boron was absorbed by groundwater and then redeposited.
Either way, the differences in terms of the composition of upper and lower levels in the Gale Crater creates a very interesting picture of how the local environment changed over time:
“Variations in these minerals and elements indicate a dynamic system. They interact with groundwater as well as surface water. The water influences the chemistry of the clays, but the composition of the water also changes. We are seeing chemical complexity indicating a long, interactive history with the water. The more complicated the chemistry is, the better it is for habitability. The boron, hematite and clay minerals underline the mobility of elements and electrons, and that is good for life.”
It seems that with every discovery, the long history of “Earth’s Twin” is becoming more accessible, yet more mysterious. The more we learn about it past and how it came to be the cold, desiccated place we know today, the more we want to know!
Close-up of star near a supermassive black hole (artist’s impression). Credit: ESA/Hubble, ESO, M. Kornmesser
In 2015, the All-Sky Automated Survey for Supernovae (aka. ASAS-SN, or Assassin) detected something rather brilliant in a distant galaxy. At the time, it was thought that the event (named ASASSN-15lh) was a superluminous supernova – an extremely bright explosion caused by a massive star reaching the end of its lifepsan. This event was thought to be brightest supernova ever witnessed, being twice as bright as the previous record-holder.
But new observations provided by an international team of astronomers have provided an alternative explanation that is even more exciting. Relying on data from several observatories – including the NASA/ESA Hubble Space Telescope – they have proposed that the source was a star being ripped apart by a rapidly spinning black hole, an event which is even more rare than a superluminous supernova.
According to the ASAS-SN’s findings – which were published in January of 2016 in Science – the superluminous light source appeared in a galaxy roughly 4 billion light-years from Earth. The luminous source was twice as bright as the brightest superluminous supernova observed to date, and its peak luminosity was 20 times brighter than the total light output of the entire Milky Way.
This artist’s impression depicts a rapidly spinning supermassive black hole surrounded by an accretion disc. Credit: ESA/Hubble, ESO, M. Kornmesse
What seemed odd about it was the fact that the superluminous event appeared within a massive, red (i.e. “quiescent”) galaxy, where star formation has largely ceased. This was in contrast to most super-luminous supernovae that have been observed in the past, which are typically located in blue, star-forming dwarf galaxies. In addition, the star (which is Sun-like in size) is not nearly massive enough to become an extreme supernova.
As such, the international team of astronomers – led by Giorgos Leloudas of the Weizmann Institute of Science in Israel and the Dark Cosmology Center in Denmark – conducted follow-up observations using space-based and Earth-based observatories. These included the Hubble Space Telescope, the Very Large Telescope (VLT) at the ESO’s Paranal Observatory and the New Technology Telescope (NTT) at the La Silla Observatory.
With information from these facilities, they arrived at a much different conclusion. As Dr. Leloudas explained in a Hubble press release:
“We observed the source for 10 months following the event and have concluded that the explanation is unlikely to lie with an extraordinary bright supernova. Our results indicate that the event was probably caused by a rapidly spinning supermassive black hole as it destroyed a low-mass star.”
The process is colloquially known as “spaghettification”, where an object is ripped apart by the extreme tidal forces of a black hole. In this case, the team postulated that the star drifted too close to the supermassive black hole (SMBH) at the center of the distant galaxy. The resulting heat and the shocks created by colliding debris led to a massive burst of light – which was mistakenly believed to be a very bright supernova.
Multiple lines of evidence support this theory. As they explain in their paper, this included the fact that over the ten-months that they observed it, the star went through three distinct spectroscopic phases. This included a period of substanial re-brightening, where the star emitted a burst of UV light that accorded with a sudden increase in its temperature.
Combined with the unlikely location and the mass of the star, this all pointed towards tidal disruption rather than a massive supernova event. But as Dr. Leloudas admits, they cannot be certain of this just yet. “Even with all the collected data we cannot say with 100% certainty that the ASASSN-15lh event was a tidal disruption event.” he said. “But it is by far the most likely explanation.”
As always, additional observations are necessary before anyone can say for sure what caused this record-breaking luminous event. But in the meantime, the mere fact that something so rare was witnessed should be enough to cause some serious excitement! Speaking of which, be sure to check out the simulation videos (above and below) to see what such an event would look like:
When it comes to helping others find something in the night sky, a green laser makes it a piece of cake. Credit: Bob King
Devious humans have given green lasers a bad name. Aiming a laser at an aircraft or the flight path of an aircraft is illegal according to a 2012 U.S. federal law. Jail time awaits offenders. Don’t point at a police officer either. To get a taste of the dark side of green lasers, check out these rap sheets.
A standard 5 milliwatt (mW) laser can cause temporary flashblindness or at the very least distract a pilot up to around 11,000 feet (3,350 meters). Beyond that, it’s indistinguishable from other ground lighting. Credit: Wikipedia
But if you mind your manners, a green laser is one of the best tools available to amateur astronomers eager to share the wonders of the night sky with the public. There’s simply nothing better to point out constellations, comets, individual stars and satellites in the night sky. Amateurs love ’em! So does the public. Go to a star party and pop out the laser, and you’ll get everyone’s attention. There’s magic in being able to point out our favorite points of light with a beam of light.
Not only are lasers helpful when pointing out stars, many amateurs use them to point zero in on deep sky objects with their telescopes. Credit: Bob King
First, let’s look at laser etiquette to ensure the safety of our fellow stargazers:
*Always gather the group around you first, raise the laser above the crowd and ask everyone to look up. Then turn on the beam and aim. That way no one will accidentally face into the light. This is crucial when aiming low above the horizon, where the beam, nearly horizontal, has a better chance of striking someone in the eye. Take extra precaution to make sure the group is close. The closer the gathering, the brighter and easier the beam will be to see. Viewers too far off to one side or another will see a weaker, less intense light.
*Green lasers often use AAA batteries and draw a good amount of power especially on chilly nights. You’ll only get a few minutes of operation if you leave it out in the cold. Store your laser in an inside pocket to keep it warm until you need it. Tuck it back in between pointing sessions. Have a fresh pair of batteries around and keep those in your pocket, too!
*If you see an airplane headed in your direction, avoid using the laser light for a couple minutes just to be on the safe side.
*Never give your laser to someone in the dark to “try out.” Especially a child! They won’t be familiar with its safe use.
* Store your laser in a safe place when not in use, so kids can’t accidentally find it.
Red, green and violet lasers with a high enough output to trace a line in the night sky are all available these days for reasonable prices. These three beams come from 50 mW lasers. Multiple rays result from the subject not being able to hold the lasers steady during the time exposure! Credit: Bob King
The most common green laser available is rated at 5 milliwatts (mW), just adequate for night sky pointing. That said, be aware that brightness from one manufacturer to another can vary. Some 5mW pointers produce nearly as much light as a 30 mW model, practically a light saber! Others, like my first green laser, did the job on moonless nights, but proved too weak by first quarter phase. 30mW and 50mW are much better and significantly amp up the wow factor when you’re out with the crowd. They’re also much easier to see for larger groups and remain visible even in bright moonlight.
Back in olden days, 5 mW red and green lasers were as bright as they came, and the green ones were pricey. But nowadays, you can get powerful pointers in green, red, blue and violet. All will trace a visible beam across the night sky with green the brightest by far because our eyes are most sensitive to green light.
Green, violet and red lasers. Lasers emit very specific colors of light. Green appears brightest and sharpest; red and blue beams look fuzzier to our eyes. Credit: Netweb01 / CC BY-SA 3 / Wikimedia
I should add that yellow lasers have also recently become available. Like green, they’re superb for long-distance applications, but prices — oh, my — will burn a hole in your wallet. How about 300 bucks! You can get a 5 mW green laser for $5-10 that’s similarly bright. No matter what kind of laser pen you buy, they all operate on the same principle: a laser diode, related to an LED (light-emitting diode), powered by AA batteries emits a narrow, coherent beam of light when switched on.
Coherent light is light of a single wavelength where all the crests and troughs (remember, light is a wave) are in lockstep with one another. Each crest precisely overlaps the next; each trough snugly fits within the other. Regular light contains a garden salad mix of every wavelength each vibrating out of stop, to its own drummer as it were. Because laser light is coherent, it stays focused over great distances, forming a narrow beam ideal for pointing.
Laser light literally illuminates the air and anything in it. The intense beam scatters off air molecules, water vapor and dust in the air. In this photo, I spun the beam around the planet Jupiter on a humid, slightly foggy night. Dust and water vapor illuminated by the beam creates a mesmerizing sparkle effect you have to see to believe. Credit: Bob King
Lasers are not only rated by power (milliwatts) but also the specific wavelength they emit. Green lasers beam light at 532 nanometers (nm), blue at 445 nm, violet at 405 nm, red at 650 nm and yellow at 589 nm. Green laser pointers generate their light from an infrared laser beam within the pen’s housing. Normally, any infrared light should be filtered from the final beam but in the majority of inexpensive laser pointers, it beams out right along with the green. We can’t see it, but concentrated infrared laser light poses an additional hazard when directed into the eyes. When you hear of lasers being used to pop balloons or light a match, it’s the leaky infrared that’s doing the popping. Yet another reason to use your laser with care!
Lasers can be artistic tools, too. Every year, a friend holds a star party near a towering grain silo. Late at night, we take a break, open the camera shutter and paint the silo with laser light. In this case — a rocket. Credit: Bob King
Lower-powered laser pointers use AAA batteries. For instance, both my 5 mW and 55 mW green lasers use AAA batteries. Higher-powered pointers in the 5-watt range use a single #18650 (or 16340) 3.7 volt lithium ion rechargeable battery. You can either purchase these online (Orbitronics makes an excellent one for $12.99) or at your local Batteries Plus store. You’ll need a charger, too, which runs anywhere from about $8 for a single battery model to around $30 for a multiple battery version with different charging speeds. Be sure you get one with an LED light that will alert you when the batteries are done charging.
Whether sold in the U.S. or elsewhere, nearly every laser comes from China. We’ll talk about that in a minute, but if you purchase a laser that uses rechargeable batteries, beware of no-name chargers and off-brand batteries that lack safeguards. Some of these inexpensive batteries have been known to explode!
What to buy? I can’t speak to every firm that offers laser pointers, and there are many, but some of the more popular ones include:
I’ve bought from Optotronics, based in Colorado and the LED Shoppe, out of Hong Kong. I took a chance on the LED Shoppe’s lasers and have been pleasantly surprised at the low cost, free shipping and good customer service. While power ratings can vary from what the label reads, I’ve been especially pleased with both the 55 mW from Optotronics and the 5-watt (yes, FIVE WATTS) green and red pointers from the LED Shoppe. Their 50 mW green version does a great job, too. Just a disclaimer — I don’t work for and am not associated with either company.
Bottom line: If you’re looking for a effective pointer for public star parties, I recommend a 50 mW or higher green pointer. Anything in that range will provide a lovely bright beam you can use to literally dazzle your audience when sharing the beauty of the night. Before you make your decision, check your country or state’s laser use laws where for the U.S.orworldwide. If buying in the U.S., speak to the business owner if you have any questions.
Have a Merry Green, Red, Blue and Violet Christmas!
Mechanical orrery by Gilkerson, in Armagh Observatory. Credit: star.arm.ac.uk
For thousands of years, humans have been studying the heavens, seeking to find patterns and predictability in their movements. This tradition goes all the way back to prehistory, where hunter-gatherer societies assigned characteristics to asterisms and celestial bodies. And from the 2nd millennium onward, magi and astronomers began recording the movements of the constellations and the planets through the zodiac.
By classical antiquity, attempts began to create astrolabes and other devices that would allow astronomers to know where the stars and planets were at any given time. These would eventually culminate in the creation of the orrery, a mechanical device that attempts to recreate the Solar System and the movements of its planets and moons around our Sun.
Definition:
Traditionally, an orrery is a mechanical model of the Solar System, or at least the major planets. This device is driven by a clockwork mechanism that simulates the motion of the planets (and, in some cases, major moons) around the Sun. This last feature is key, since most known orreries were produced during the early modern period and after, when the Heliocentric model of the Solar System came to be the accepted one.
Orreries are typically driven by a clockwork mechanism with a globe representing the Sun at the center, and with a planet at the end of each of the arms. They are usually not to scale, partly because of the difficulty of mechanically modeling the distances involved, the eccentricity of various planets’ orbits, and the planets’ massive differences in terms of size.
Though many working planetaria were created during Classical Antiquity, the first orrery of the modern era was produced in 1704 by clock makers George Graham and Thomas Tompion. The name is derived from Charles Boyle, the 4th Earl of Orrery, England, who commissioned famed instrument maker John Rowley to build one in 1713 based on the design of Graham and Tompion.
Early Examples:
The Antikythera mechanism, which is dated to ca. 150 – 100 BCE, may be considered the first orrery that is still in existence. Discovered in the wreck of a ship in 1900 off the Greek island of Antikythera (hence the name), this device consisted of hand-driven mechanisms that represented the diurnal motions of the Sun, the Moon, and the then-known five known planets (Mercury, Venus, Earth, Mars, Jupiter).
The Antikythera Mechanism may be the world’s oldest computer. Credit: Wikipedia Commons/Marsyas
Reflecting the cosmological view of the Greeks, the device was geocentric in nature and was used as a mechanical calculator designed to determine astronomical positions. According to Roman philosopher Cicero (106 – 43 BCE), the Syrian-born Greek philosopher Posidonius of Rhodes (ca. 135 – 51 BCE ) built a planetary model as well. With the fall of the Roman Empire, the art would not be resurrected until the late Medieval Period.
In 1348, Italian doctor and clock maker Giovanni Dondi built the first known clock-driven mechanism which displayed the position of Moon, Sun, Mercury, Venus, Mars, Jupiter and Saturn along the ecliptic – according to the Ptolemaic (geocentric) model of the Solar system. At present, only a written account survives, but it is extremely detailed in its description of the mechanisms involved.
During the 16th century, two astronomical clocks were built for the court of William IV, Langrave of Hesse-Kassel (in modern day Bavaria, Germany). These showed the motions of the Sun, Moon, Mercury, Venus, Mars, Jupiter and Saturn based on the Ptolemaic system. These clocks are now on display at the Museum of Physics and Astronomy and the Royal Cabinet of Mathematical and Physical Instruments (in Kassel and Dresden, respectively).
Modern Examples:
Thanks to Copernicus’s proposal of the Heliocentric model of the Universe, Isaac Newton’s Law of Universal Gravitation, and other discoveries that took place during the Scientific Revolution, orreries changed significantly by the early modern period. In essence, the Heliocentric model simplified the apparent orbits of the planets around the Sun, to the point that they could be represented as simple circles or ellipses.
A Philosopher Lecturing on the Orrery (ca. 1766) by Joseph Wright of Derby. Credit: Public Domain
As noted, the first modern orrery was created in 1704 in England by clock makers George Graham and Thomas Tompion. This design was given to instrument maker Jon Rowely, who then produced a copy for the Prince Eugene of Savoy and was commissioned by his patron – Charles Boyle – to build them for himself and his son John – who would go on to become the 5th Earl of Orrery (and the 5th Earl of Cork).
Between 1665 and 1681, while in Paris, Christiaan Huygens created a heliocentric planetary machine that represented a year and the cycles of the then-known planets. He would go on to publish papers describing its functions by 1703. The painting “A Philosopher giving a Lecture on the Orrery in which a lamp is put in place of the Sun”, which Jospeh Wright completed in 1766, features a brass orrery as its centerpiece.
Between 1774 and 1781, Eisinga’s Planetarium was built in Franeker, in the Netherlands by amateur Frisian astronomer Eise Eisinga. Central to the planetarium is an orrery which shows the orbits of the planets across the width of the room’s ceiling. The clockwork machine that powers it has been in almost continuous operation since it first opened.
In 1764, Benjamin Martin invented a new type of orrery that relied on three parts – the planetarium where the planets revolved around the Sun; the tellurion, which showed the inclined axis of the Earth and how it revolved around the Sun; and the lunarium which showed the eccentric rotations of the Moon around the Earth. This allowed for a more accurate representations of the Solar System, which included the planet’s inclinations, relative to the Sun.
Orreries Today:
Today, with immense amounts of low-cost computing power available, software has been developed to calculate the relative positions and motions of Solar System bodies. Examples of these “digital orreries” include a java applet used at the Department of Physics at the University of Texas at Austin, and Orrery, a Solar System Visualizer from The Geometry Center at the University of Minnesota (which relies on Unix).
There is also the Digital Orrery, a special-purpose computer designed to model the long term motions of the outer planets of the Solar System. Constructed in 1985, it was built to answer a long-standing question about the Solar System, which is whether or not it is stable (invariably, the answer was a big no). This device is now at the Smithsonian Institution in Washington, DC.
And in 2013, the first virtual orrery was created by the Cattle Point Foundation at the DARK SKY Urban Star Park, located in Oak Bay, British Columbia. The orrery is called “The Salish Sea Walk of the Planets“, and was built with Google Maps to avoid negatively impacting the park and the nearby Orca and wildlife sanctuaries. This orrery has now extended beyond the Star Park to become the world largest, covering a distance of over 8,500 km (5,300 mi).
The Sun and Cairn, part of “The Salish Sea Walk of the Planets” in Oak Bay, BC. Credit: attlepointstarpark.org
The Sun is located in the Star Park in Oak Bay (shown above) while Pluto (the most distant “planet”) is located in Bamfield on the western side of Vancouver Island, BC. The Kuiper Belt Objects are situated north in the small towns of Ucluelet and Tofino while the farthest object within our Solar System – the Oort Cloud – is across the sea at the Canadian Embassy in Beijing, China.
Meanwhile, physical orreries still exist in many locations. For example, there’s The York Solar System Model Orrery, a special bike path constructed in 1999 and maintained by York University in the UK. Spread out along 10.3 km (6.4 miles) of the old East Coast main-line railway, this scale model of the Solar System contains all the planets of the Solar System, as well as models of the Cassini and Voyager spacecraft.
There is also the “Path of the Planets Uetliberg–Felsenegg“, which follows a hiking trail along the Albis (a chain of hills in Switzerland). The path was designed by Arnold von Rotz to be a 1:1 billion scale model of the Solar System (where 1 meter equals 1 billion km). The path runs from the towns of Uetliberg to Felsenegg (which is about 2 hours away on foot) and opened on April 26th, 1979.
Each planet is represented by a large orb that is mounted to a boulder or affixed inside one (depending on their size) and has a sign that includes the body’s place in the Solar System and their basic info (like equatorial diameter, rotational speed, etc.)
The bronze orb representing the Sun along the “Passauer Footpath of the Planets”, in Lower Bavaria, Germany. Credit: uetliberg.ch
There’s also The Human Orrery, which is located at Armagh Observatory, in Northern Ireland. This orrery allows people to play the part of the planets of Mercury, Venus, Earth, Mars, Jupiter, and Saturn, as well as Ceres and two comets (1P/Halley and 2P/Encke). Due to their immense distance, and the fact the orrery is to scale, Uranus and Neptune are not included.
From our humble beginnings as hunter-gatherers who looked up at the stars and discerned patterns in their appearance, humanity has come a long way in terms of its understanding of the Universe. As we invented devices to look deeper into the night sky, and even explore space directly, our models have matured accordingly, growing in terms of accuracy and complexity.
That tradition continues, with more mission to study and explore the outer Solar System proceeding apace. Future orreries are likely to take advantage of all this, leveraging new technologies and new information to create even more detailed and interesting representations of our cosmic background!
The Earth straddling the limb of the Moon, as seen from above Compton crater on the lunar farside, taken by the Lunar Reconnaissance Orbiter spacecraft. Credit: NASA/GSFC/Arizona State University.
The current divisiveness that seems to be permeating our culture has many wondering if we can ever overcome the divisions to find our common humanity, and be able to work together to solve our problems. I’ve said – only somewhat jokingly — that if there are any alien species out there, waiting to make first contact with the people of Earth in order to unify our planet, now would be a good time.
I saw a quote last week, where in remembering astronaut John Glenn, Bill Nye said “Space exploration brings out our best.”
I really believe that. Space exploration challenges us to not only to be and do our best, but reach beyond the ordinary, push the boundaries of our scientific and technical limits, and then to push even further. That “intangible desire to explore and challenge the boundaries of what we know and where we have been,” as NASA has phrased it, has provided benefits to our society for centuries. With space exploration, our desire to answer fundamental questions about our place in the Universe can not only help to expand technology, but it helps us look at things in new ways and it seems to help foster a sense of cooperation, and – if I may – peaceful and enduring connections with our fellow humans.
If we could only look for and encourage the best in each other, and simply spend time cooperating and working together, I think we’d be amazed at what we could accomplish.
The people involved in space exploration already do that.
The team from the Mars Science Laboratory celebrate the successful landing of the Curiosity rover on Mars in August of 2012. Credit: NASA/JPL.
I recently had the opportunity to meet with some of our best, brightest and boldest and witness the cooperation and respect that it takes for space missions to succeed. Over the past several months, I interviewed 37 NASA scientists and engineers from current robotic missions for a book I wrote, “Incredible Stories From Space: A Behind-the-Scenes Look at the Missions Changing Our View of the Cosmos.” In all these stories these scientists and engineers shared with me, several things stood out.
Cooperation
Space exploration offers an incredible example of cooperation. Getting a mission off the ground and keeping it operational for as long as possible takes an amazing amount of cooperation. A delightful children’s book titled “Team Moon: How 400,000 People Landed Apollo 11 on the Moon” by Catherine Thimmesh shows how it took hundreds of thousands of people from not just the United States, but also from around the world to send the astronauts to the Moon. From rocket scientists to the seamstresses that sewed the spacesuits together, to the radio operators around the globe that monitored communications, each person, each step was an important link in the chain of what it took to make the Apollo 11 mission possible.
And while my book focuses on NASA missions (I really wish traveling abroad to include missions from other space agencies would have been in my budget!) almost all robotic missions these days are international ventures.
Helmut Jenkner, who is currently the Interim Head of the Hubble Space Telescope Mission, told me that the international nature of the Hubble mission has brought an inherent diversity to the project. The diverse approach to solving problems has helped Hubble be such a successful mission, and with Hubble in space for nearly 27 years, Jenkner said that diverse approach has helped the Hubble mission to endure.
JPL Waves at Saturn As NASA’s Cassini spacecraft turned its imaging cameras to Earth, scientists, engineers and visitors at NASA’s Jet Propulsion Laboratory, Pasadena, Calif., gathered to wave at our robotic photographer in the Saturn system on July 19, 2013. Credit: NASA/JPL-Caltech
In virtually all robotic missions, scientists from around the world work together and provide their expertise from building instruments to analyzing the data. Working across borders and languages can be difficult, but for the mission to succeed, cooperation is essential. Because of the common goal of mission success, differences from major to petty can be put aside.
On a robotic spacecraft, the many different components and instruments on board are built by different companies, sometimes in several different countries, but yet all the pieces have to fit together perfectly in order for a mission to succeed. Just putting together a mission concept takes an incredible amount of cooperation from both scientists and engineers, as they need to figure out the great compromise of what is possible versus what would be ideal.
I don’t mean to be completely Pollyanna here, as certainly, there are personality conflicts, and I know there are people involved in space missions who have to work side-by-side with someone they don’t really like or don’t agree with. There is also intense competition: the competition for missions to be chosen to get sent to space, the rivalry for who gets to lead and make important decisions, and disagreements on the best way to proceed in times of difficulty. But yet, these people work it out, doing what is necessary in order for the mission to succeed.
Inclusiveness
An artist’s conception of Juno in orbit around Jupiter. image credit: NASA
Space exploration brings out a sense of inclusiveness. Many of the Apollo astronauts have said that when they traveled to other countries following the missions, people around the world would say how proud they were that “we went to the Moon.” It wasn’t just the US, but “we humans” did it.
When the Curiosity rover landed, when Juno went into orbit around Jupiter, when the Rosetta mission successfully went into orbit around a comet (and then when the mission ended), when New Horizons successfully flew by Pluto, my social media feeds were filled with people around the world rejoicing together.
Being inclusive and encouraging diversity are “mission critical” for going to space, said astrophysicist Jedidah Isler at the recent White House Frontiers Conference. “We have both the opportunity and the obligation to engage our entire population in this epic journey [into space],” she said.
Also at White House Frontiers, President Obama said that “Problem solving through science, together we can tackle some of the biggest challenges we face.”
Dedication and Commitment
New Horizons flight controllers celebrate after they received confirmation of the spacecraft’s successful flyby of Pluto on July 14, 2015. Credit: NASA/Bill Ingalls.
Another human aspect that stood out during my interviews is the dedication and commitment of the people who work on these missions to explore the cosmos. Interview after interview, I was amazed by the enthusiasm and excitement embodied by these scientists and engineers, their passion for what they do. I truly hope that in the book, I was able to capture and convey their incredible spirit of exploration and discovery.
Space exploration takes people working long hours, figuring out how to do things that have never been done before, and never giving up to succeed. Alan Stern, Principal investigator for the New Horizons mission to Pluto explained how it took “dedication from 2,500 people around the country who worked all day plus nights and weekends for over 15 years” for the mission to makes its successful flyby of Pluto in July 2015. The dedication continues as the New Horizons team has their sights on another ancient body in the Kuiper Belt that the spacecraft will explore in January 2019.
Taking the larger view.
The first image ever taken of Earth from the surface of a planet beyond the Moon. The image was taken by the Mars Exploration Rover Spirit’s panoramic camera on March 8, 2004, one hour before sunrise on the 63rd Martian day, or sol, of its mission. Credit: NASA/JPL.
Space exploration helps us look beyond ourselves.
“A lot of space exploration is taking you out of the trees so you get a glimpse of the forest,” Rich Zurek told me when I visited him at JPL this year. Zurek is the head of NASA’s Mars exploration program, as well as the Project Scientist for the Mars Reconnaissance Orbiter. “A classic example is the Apollo 8 view of the Earth over the Moon’s horizon. You can imagine what the planet looks like but when you actually see it, it is very different and can evoke many different things.”
The first views of Earth from space and seeing the fragileness of our planet from a distance help launch the environmental movement in the 1970’s, which continues today. That planetary perspective is crucial to the future of humanity and our ability solve world-wide problems.
“Working on a project like this gives meaning in general because you are doing something that is outside of yourself, outside of our personal problems and struggles, and you really think about the human condition,” said Natalie Batalha, who is the mission scientist for the Kepler missions’ hunt for planets around distant stars. “Kepler really makes us think about the bigger picture of why we’re here and what we’re evolving towards and what else might be out there.”
Space explorations expands our horizons, feeds our curiosity, and helps us finding all sorts of unexpected things while helping to answer profound questions like how did the Universe begin? How did life begin? Are we alone?
Does that sound too utopian? Like in Star Trek, space exploration offers an optimistic view of the future, and humanity. Star Trek’s “Infinite Diversity from Infinite Combinations” says the only way we grow is through new ideas and experiences, and as soon as we stop exploring, we stop growing.
“We are all confined to Earth but yet we reach out and undertake these grand adventures to space,” said Marc Rayman, who is the director and chief engineer for the Dawn mission to the asteroid belt. He is one of the most passionate people – passionate about space exploration and life itself — I’ve ever talked to. “We do this in order to comprehend the majesty of the cosmos and to express and act upon this passion we feel for exploration. Who hasn’t looked at the night sky in wonder? Who hasn’t wanted to go over the next horizon and see what is beyond? Who doesn’t long to know the universe?”
“Anyone who has ever felt any of those feelings is a part of our mission,” Rayman continued. “We are doing this together. And that’s what I think is the most exciting, gratifying, rewarding and profound aspect of exploring the cosmos.”
“Incredible Stories From Space: A Behind-the-Scenes Look at the Missions Changing Our View of the Cosmos”is available for pre-order on Amazon and Barnes & Noble, with delivery by Dec. 20.
