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 ...

RKLB: Rocket Lab Corp. (NASDAQ:RKLB) reported a slew of good news last week, including signing a definitive agreement to acquire Geost, a provider of high-priority national security satellites. Rocket ...

A computer controlling the Atlas V rocket’s countdown triggered an automatic hold less than four minutes prior to liftoff of Boeing’s commercial Starliner spacecraft Saturday, keeping the crew test ...

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 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 Earth in December 2025.

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 ...