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

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 ...

Japan will launch a new navigation satellite to orbit tonight (Dec. 16), and you can watch the action live. An H3 rocket is scheduled to launch the Michibiki 5 spacecraft from Tanegashima Space Center ...

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 ...

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

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 ...