The service is studying alternatives to the Space Development Agency's Transport Layer, which is providing small satellites for tactical communications.

Warhammer 40,000: Space Marine 2’s long-awaited Siege Mode is out now across all platforms alongside Patch 8, which makes some significant changes to the game. Check out the patch notes.

Retired astronaut Peggy Whitson, America's most experienced space flier, and rookie crewmates from India, Poland and Hungary blasted off on a privately-financed flight to the space station.

Houston’s Axiom Space launched its fourth human spaceflight mission on Wednesday. One of the mission’s experiments hopes to open spaceflight to people with diabetes.

Live updates from the launch of the Ax-4 mission. The long delayed Axiom Space Mission 4 crew lifted off at 2:31 a.m. on June 25.

PRAGUE—China describes its space activity—including the deployment of highly maneuverable satellites, satellites equipped with robotic arms, and moon missions—as nonmilitary. But officials ...

Physics The radical idea that space-time remembers could upend cosmology There are new hints that the fabric of space-time may be made of "memory cells" that record the whole history of the universe.

Why space wrecks the human bodyIn this week’s episode of Space Minds, we explore how microgravity accelerates aging—and guest Dr. Nadia Maarouf shares her insights on the phenomenon and what ...

Sierra Space, a space technology company based in Colorado, announced a dedicated defense business and plans to expand its manufacturing capacity to support its growing national security portfolio.

Telescopes in space give us a view we literally cannot get from the ground ...

Black hole and Big Bang singularities break our best theory of gravity. A trilogy of theorems hints that physicists must go to the ends of space and time to find a fix.

WASHINGTON — The Space Force is losing nearly 14% of its civilian workers to a combination of early retirements, resignations and other incentives as the Defense Department works to slash its ...