Two Chinese satellites reportedly performed what appears to be the country's first high-altitude orbital refueling, as U.S.

A shortage of rockets and competition for launch resources appear to be putting the mega-constellation's targets in doubt A Chinese mega-constellation of communications satellites is facing serious ...

Although impressive, it raises concerns about potential docking with and disabling other countries' orbital military assets.

During its mission from December 23, 2017 to October 1, 2019, the Super Low Altitude Test Satellite (SLATS) “TSUBAME” reached a suitably super-low altitude of 167.4 km (104 mi).

There are thousands of satellites in LEO, a region defined as below an altitude of 2,000 km (1,200 mi). Most of our satellites and artificial space objects are in this region.

SpaceX's Starlink uses a dense network of low-orbit satellites to compensate for lower altitude and limited per-satellite capacity. The success of the Chinese satellite at a much higher orbit suggests ...

"At altitudes of 500 kilometers [310 miles], we can determine the position of our satellites with the accuracy of 2 centimeters [0.8 inches]," Alex Saltman, CEO of California-based satellite ...

At these altitudes, disabled. satellites are a collision risk. for space stations. Oct. Nov. 4. Dec. At about 550 km. they will last up to. five years in this orbit. Jan. 2023.

World View’s Stratollites are designed to leisurely float to an altitude between 50,000 and 75,000 feet where they’re meant to hover over the same patch of Earth for up to two months at a time.