Dick Battin stood on his driveway
in the New England frosty pre-dawn back in October 1957, straining his eyes to
see Sputnik fly overhead. It was amazing. Watching that little point of light
scoot silently across the sky made Battin’s heart pound. A human-made hunk of
metal was actually orbiting Earth!
Walking back to his house, Battin’s mind raced. Oh, how he wished he’d never left the MIT Instrumentation Laboratory a year and a half ago. He’d regretted it since the day he decided to move on to what he thought were greener pastures. But now, his regret became a steadfast resolve to somehow get back to the Lab again, because he knew – he was absolutely certain without a doubt – that Doc Draper would be getting his hand in this new venture of space exploration. And Battin wanted in, too.
Continue reading “The Story of the Apollo Guidance Computer, Part 1”
Why report on an asteroid that has no chance of hitting Earth? Because this asteroid, known as 2006 QV89, has a history. A history of being kind of hard to track.
Continue reading “Asteroid 2006 QV89 Now Has a 0% Chance of Hitting Earth in September”
The idea of somehow terra-forming Mars to make it more habitable is a visionary, sci-fi dream. But though global terra-forming of Mars is out of reach, the idea persists. But now, a material called silica aerogel might make make the whole idea of terra-forming Mars slightly less impossible.
Continue reading “Blankets of Silica Aerogel Could Make Parts of Mars Habitable”
Despite the many advancements made in the field of astronomy, astronomers still struggle to get an accurate assessment of the Milky Way Galaxy. Because we are embedded in its disk, it is much more difficult to assess its size, structure, and extent – unlike galaxies located millions (or billions) of light-years away. Luckily, thanks to improved instruments and tireless efforts, progress is being made all the time.
For instance, a team of astronomers recently combined the latest data obtained by the ESA’s Gaia observatory with the infrared and optical observations of other telescopes to start mapping the bar-shaped collection of stars at the center of our Milky Way. This constitutes the first time in history that astronomers have been able to make direct measurements of this barred structure.
Continue reading “Gaia Mission is Mapping Out the Bar at the Center of the Milky Way”
A unique, low-cost, and crowd-scream-sourced experiment has proven what all sci-fi movie fans know is true: In space, no one can hear you scream.”
That line is the tag line from the famous 1979 movie Alien, of course. And now an innovative experiment in Britain has shown that the writer of that movie was correct. To prove it, they used off-the-shelf electronics, an inexpensive balloon, and the recorded screams from a mother in South Africa.
Continue reading “Screaming Sounds Sent to the Edge of Space, Confirming That… “In Space, No One Can Hear You Scream””
On Saturday, April 20th, 2019, an explosion took place on SpaceX’s Landing Zone 1 at Cape Canaveral Air Force Station in Florida. The company was engaged in a series of static fire engine tests for their Crew Dragon‘s In-Flight Abort test vehicle. This vehicle is essential for crewed missions since it acts as a sort of ejection seat for the crew capsule in the event of an emergency.
While the initial tests of the twelve Draco thrusters on the vehicle were completed successfully, the initiation of the final test of eight SuperDraco thrusters resulted in the destruction of the vehicle. After a thorough investigation, SpaceX has concluded that the explosion was caused by a nitrogen tetroxide leak that occurred just prior to the final test.
Continue reading “Crew Dragon Exploded Back in April Because of a Nitrogen Tetroxide Leak”
During the 1930s, venerable theoretical physicist Albert Einstein returned to the field of quantum mechanics, which his theories of relativity helped to create. Hoping to develop a more complete theory of how particles behave, Einstein was instead horrified by the prospect of quantum entanglement – something he described as “spooky action at a distance”.
Despite Einstein’s misgivings, quantum entanglement has gone on to become an accepted part of quantum mechanics. And now, for the first time ever, a team of physicists from the University of Glasgow took an image of a form of quantum entanglement (aka. Bell entanglement) at work. In so doing, they managed to capture the first piece of visual evidence of a phenomenon that baffled even Einstein himself.
Continue reading “First Ever Image of Quantum Entanglement”
It’s all about the detail.
In a way, Mars looks like a dusty, dead, dry, boring planet. But science says otherwise. Science says that Mars used to be wet and warm, with an atmosphere. And science says that it was wet and warm for billions of years, easily long enough for life to appear and develop.
But we still don’t know for sure if any life did happen there.
Continue reading “Pictures from Curiosity Show the Bottom of an Ancient Lake on Mars, the Perfect Place to Search for Evidence of Past Life”
NASA has pioneered the development of all kinds of robots and robotic systems. Beyond its0 orbiters and satellites, which have been exploring the planets and bodies of the Solar System for decades, there’s also the growing army of landers and rovers that have been exploring planetary surfaces. Aboard the ISS, they even have floating robots (like CIMON) and humanoid robot helpers – a la Robonaut and Robonaut 2.
Looking to the future, NASA hopes to build robots that can do even more. While the current generation of rovers can drive across the plains and craters of Mars, what if they could explore cliffs, polar ice caps and other hard-to-reach places? That is the purpose behind the Limbed Excursion Mechanical Utility Robot (LEMUR) that is currently being developed by engineers at NASA’s Jet Propulsion Laboratory.
Continue reading “NASA is Building Robots That Can Climb Rock and Ice Cliffs”
Japan’s Hayabusa 2 spacecraft is now the first spacecraft to retrieve a subsurface sample from an asteroid. On July 11th, the spacecraft touched down for a second time on asteroid 162173 Ryugu. This time, the probe retrieved a sample from a crater it excavated with its impactor.
Continue reading “Hayabusa 2 is the First Spacecraft to Sample the Inside of an Asteroid”