WASHINGTON — United Launch Alliance plans to begin 2026 with a national security mission as its Vulcan Centaur rocket ...

HELSINKI — China appears to have considered boosting its space situational awareness capabilities by placing a satellite in a retrograde orbit out at the geostationary belt. A paper published in ...

SpaceX is set to launch a Falcon 9 rocket carrying two Intelsat satellites on Saturday morning. The launch is scheduled for 11:06 a.m. and has a launch window of 120 minutes. The INTELSAT G-31/G-32 ...

Geosynchronous Synthetic Aperture Radar (GEO SAR) systems represent a promising frontier in Earth observation technology, offering continuous monitoring of specified regions with exceptionally short ...

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 ...