The four astronauts preparing to fly around the Moon on Artemis II have now practiced their biggest moment short of launch ...

Such "countdown demonstration tests" have traditionally taken place shortly before launch with the rocket and crew ship ...

The astronauts assigned to NASA’s next trip around the Moon have now lived through launch day in everything but the roar of ...

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

Fresh off repairs at the launch pad in Florida, United Launch Alliance engineers restarted the countdown overnight for the third attempt to send an Atlas V rocket and Boeing’s Starliner spacecraft on ...

NASA began the countdown for the launch of Space Shuttle Atlantis on mission STS-115 at noon EDT Thursday, Aug. 24, at the T-43 hour point. During this mission, Atlantis’ crew will resume the ...

A Falcon 9 rocket remains at Vandenberg Space Force Base after the team had to scrub liftoff attempt on Sunday morning. The next launch attempt will occur Monday. Credit: SpaceX photo With seconds ...

NASA will begin the countdown once again for the launch of Space Shuttle Atlantis on mission STS-115 Sept. 3 at 8 a.m. EDT, at the T-43 hour point. During this mission, Atlantis’ crew will resume the ...

I/ATLAS comet is the 3rd-ever object discovered that originated from outside our solar system. It's not a threat, approaches ...

[Jon Petter Skagmo] claims that the spaceship simulator he’s working on is for his daughter, but we think there’s an excellent chance he’s looking to fulfill a few childhood dreams of his own. But no ...