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 ...

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

Satellites which fly in low Earth orbit (LEO) typically ascend to an altitude of 500 kilometers (310 miles) or higher above earth. VLEO sats like Earth Observant’s proposed “Stingray ...

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).

"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.

High-altitude balloons, some of which can reach altitudes of up to 100,000 feet (30,500 meters) or 19 miles (30.6 kilometers), have been used to observe weather patterns since at least the early ...

The main engine needed to boost the satellite to its operational altitude has experienced problems aboard two other satellites. But Mandt said engineers are confident they understand the issue and ...