Space Logistics LLC, a subsidiary of Northrop Grumman, has launched a satellite that can extend the life of other satellites. The satellite is called MEV-1, or Mission Extension Vehicle-1. MEV-1 is the first of its kind.Continue reading “A Satellite Just Launched Whose Job is to Extend the Life of Geosynchronous Satellites”
The US President has done it again.
Just when you think things can’t get any more—”unusual”— in the White House, the President has Tweeted an American spy satellite image as part of a juvenile jab at Iranian leadership. After some sleuthing, astronomers were able to figure out which satellite it came from: a (formerly) top-secret satellite called USA 224, an optical reconnaissance satellite.Continue reading “Thanks to Trump, We’ve Got a Better Idea of the Capabilities of US Surveillance Satellites”
Picture two tissue box-sized spacecraft orbiting Earth.
Then picture them communicating, and using a water-powered thruster to approach each other. If you can do that, then you’re up to speed on one of the activities of NASA’s Small Spacecraft Technology Program (SSTP.) It’s all part of NASA’s effort to develop small spacecraft to serve their space exploration, science, space operations, and aeronautics endeavors.Continue reading “NASA Tests Water Powered Spacecraft in Orbit”
LightSail 2, the brainchild of The Planetary Society, has gifted us two new gorgeous images of Earth. The small spacecraft is currently in orbit at about 720 km, and the LightSail 2 mission team is putting it through its paces in preparation for solar sail deployment sometime on or after Sunday, July 21st.Continue reading “LightSail 2 is Sending Home New Pictures of Earth”
Back in April 2019 Amazon signaled its intention to get into the internet satellite business. Following in the footsteps of SpaceX and their Starlink satellite system, Amazon intends to launch thousands of internet satellites in the coming years. Now that they’ve filed their application with the FCC, we have more details of their plan.Continue reading “Move Over SpaceX. Amazon Wants To Launch Thousands of Internet Satellites Too”
Since 2015, Virgin Orbit has been developing a launch system that will send satellites into space using a rocket launched from a modified 747. This is part of Sir Richard Branson’s plan to crack the burgeoning market of cost-effective satellite deployment. This market is especially lucrative considering how many satellites are expected to be launched into orbit in the coming years.
This week, the Virgin Orbit team achieved a major milestone by flying the LauncherOne rocket into the air and releasing it over the Mojave desert for the first time. This drop-test not only validated the design of the modified 747 (named Cosmic Girl) that serves as its flying launchpad, it also demonstrated the effectiveness of the launch system – which can rely on regular airstrips instead of launch pads to send satellites into space.Continue reading “Virgin Orbit Tests its Satellite-Delivery Rocket for the First Time”
The growing problem of space debris in LEO (Low-Earth Orbit) is garnering more and more attention. With thousands of satellites in orbit, and thousands more on the way, our appetite for satellites seems boundless. But every satellite has a shelf-life. What do we do with them when they’ve outlived their usefulness and devolve into simple, troublesome space debris?Continue reading “Can We Use Special Sails To Bring Old Satellites Back Down To Earth?”
On June 25th, 2019, The Planetary Society‘s
Since reaching orbit, the LightSail 2 has been indicated that it is in good working order, as indicated by the Mission Control Dashboard recently introduced by The Planetary Society. In addition to establishing two-way communications with mission controllers and passing a battery of checkouts, the spacecraft also took its first pictures of Earth (and some selfies for good measure).Continue reading “LightSail 2 Mission is Going Strong and Sending Mission Info Home!”
Back in May 23rd, 2019, SpaceX launched the first batch of its Starlink constellation, a fleet of satellites that will fulfill Elon Musk’s promise to provide broadband satellite-internet access to the entire planet. The deployment of these sixty satellites was the first in a series of six planned launches that would see around 720 satellites orbiting at an operational altitude of 550 km (340 mi).
Over the course of the past month, SpaceX announced that all sixty of the satellites were responsive, but recently indicated that contact had been lost with three of them. According to a statement issued by a company spokesperson on June 28th, these three satellites pose no danger as they will deorbit “passively” and burn up in the atmosphere.Continue reading “SpaceX has Lost Contact With 3 of its Starlink Satellites”
There’s no denying it, we are facing an orbital debris problem! As of January 2019, the ESA’s Space Debris Office estimates that there are at least 34,000 pieces of large debris in Low Earth Orbit (LEO) – a combination of dead satellites, spent rocket stages, and other assorted bits of space junk. And with thousands of satellites scheduled to be launched in the next decade, that problem is only going to get worse.
This is a situation that cries out for solutions, especially when you consider the plans to commercialize LEO and start sending crewed missions to deep space in the coming years. A team of scientists from the Universidad Carlos III de Madrid (UC3M) has come up with a simple but elegant idea: equip future satellites with a tether system so they can de-orbit themselves at the end of their lives.Continue reading “Satellites Equipped With a Tether Would be Able to De-Orbit Themselves at the end of Their Life”