Two Chinese satellites have rendezvoused with one another more than 20,000 miles above the Earth in what analysts believe is the first high-altitude attempt at orbital refueling. China’s Shijian-21 ...

It's been decades since humanity first sent a satellite into orbit, and during all this time we kind of become experts at it. What we still haven't mastered yet is extending the life of these ...

Two Chinese satellites have rendezvoused with one another more than 20,000 miles above the Earth in what analysts believe is the first high-altitude attempt at orbital refueling. China’s Shijian-21 ...

Private space trackers have detected a bizarre movement of Chinese satellites in geosynchronous orbit (GEO), the farthest orbit above the Earth. Speculation in the space community has been rampant, ...

Illustration of congestion in geostationary orbit. Credit: ESA/ID&Sense/ONiRiXEL; CC BY-SA 3.0 WASHINGTON — The U.S. Space Force will evaluate commercial alternatives to its bespoke military ...

Approximately 2,600 pounds of high-purity hydrazine was supplied for the rocket and payload, and 755 pounds of dinitrogen tetroxide for the payload in order to launch this Atlas V rocket on Aug. 8, ...

In the second orbit raising manoeuvre operations conducted today (September 14, 2002) from the Master Control Facility at Hassan, the Liquid Apogee Motor (LAM) on board India’s first exclusive ...

China is quietly rewriting the economics of spaceflight by proving that satellites do not have to be disposable hardware that dies when the fuel runs out. A new generation of Chinese spacecraft is ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

SpaceX scored its 500th landing of a Falcon 9 first stage booster on an otherwise routine flight earlier this month, sending 28 Starlink communications satellites into orbit. Barring any unforeseen ...