A major step toward launch day is complete as NASA's Artemis II astronauts ran through a countdown demonstration test.

SpaceX confirmed that one Starlink satellite recently exploded in orbit, and it is now tumbling to re-enter the planet.

NASA’s Artemis II crew completed a launch day rehearsal at Kennedy Space Center, practicing countdown procedures, spacecraft boarding and system checks ahead of their 2026 lunar orbit mission.

Researchers attempted to quantify the risk of a catastrophic collision in orbit by coming up with an alarming new metric.

President Donald Trump’s new executive order lays out the US's priorities in space. Among them is a renewed commitment to a ...

Well, they’re finally back! After what turned into a much longer trip than anyone expected, the astronauts from the historic ‘Astronaut Returns’ mission have touched down safely. What was supposed to ...