The first satellites of a Chinese broadband constellation are significantly brighter than those of Western systems, posing a new challenge for astronomers.

United Launch Alliance’s second Vulcan Centaur lifted off Oct. 4 on a test flight needed to certify the vehicle for carrying national security payloads, but may have suffered a problem with one of ...

NASA has selected proposals for X-ray and far-infrared space telescopes for additional study as part of a new line of astrophysics missions.

China unveils lunar spacesuit for crewed moon mission China’s human spaceflight agency has revealed the exterior design of ...

SpaceX is suspending launches of its Falcon 9 rocket after a problem with the deorbit burn of the upper stage on a crewed ...

Join our newsletter to get the latest military space news every Tuesday by veteran defense journalist Sandra Erwin. WASHINGTON — The space infrastructure company Sierra Space announced Oct. 3 it ...

The company will provide two orbital transfer vehicles that will carry space surveillance payloads for the U.S. military’s Tactically Responsive Space program ...

A Falcon 9 launched a NASA astronaut and Russian cosmonaut to the ISS Sept. 28 on the first crewed mission from a historic ...

California-based Xona Space Systems is expanding to Canada ahead of deploying the first in a proposed constellation of small ...

A second successful test of a redesigned rocket motor clears the way for Europe’s Vega C rocket to return to flight nearly two years after a launch failure.

WASHINGTON — Geospatial intelligence company BlackSky plans to make its future Gen-3 satellites compatible with military ...