The Artemis 2 megarocket set to launch NASA's next astronauts to the moon in 2026 is almost completely assembled. The giant ...

A Soviet-era spacecraft plunged to Earth on Saturday, more than a half-century after its failed launch to Venus ... and analyzed data from orbit. The U.S. Space Command routinely monitors dozens ...

Foreshadowing the future, two rockets lifted a combined 50 broadband satellites for two rival space-based internet companies into low-Earth orbit Monday ... NASA's Space Launch System moon ...