NASA on Tuesday restarted a two-day dress rehearsal countdown for the agency's new Space Launch System moon rocket after a series of unrelated glitches, mostly involving ground systems, blocked two ...

Starship test flight has been building for weeks, with space enthusiasts closely watching every update from SpaceX. The company’s massive Starship rocket, the largest and most powerful ever built, has ...

Launch recap: Scroll down to review live updates from the Thursday, Aug. 20, scrubbed launch attempt of a SpaceX Falcon 9 rocket from Cape Canaveral on the Starlink 10-39 mission. Original story: ...

After four years of delays, Europe's new Ariane 6 rocket is set to blast off for the first time on Tuesday, carrying with it the continent's hopes of regaining independent access to space. The ...

NASA and contractor engineers pumped more than 750,000 gallons of supercold propellants into the agency's huge Space Launch System rocket Thursday without any signs of hydrogen leaks in a major step ...