Add Yahoo as a preferred source to see more of our stories on Google. After a successful splashdown following a medical evacuation from the International Space Station, the astronauts of NASA's ...

Hours after holding what the space agency called a successful dress rehearsal, NASA found interrupted helium flow into the rocket, handing a significant setback to the lunar mission.

Engineers over the weekend found helium flow was disrupted in one of the rockets. Now, Artemis II is making the 4-mile, ...

NASA's iconic Discovery space shuttle may not be on the move any time soon. Lawmakers in Texas have long sought to relocate the historic spacecraft to the Johnson Space Center in Houston, and a ...

NASA is keeping an eye on uncharacteristically cold weather in Florida that could thwart a potential launch attempt as the agency prepares to send four astronauts on a historic journey around the moon ...

NASA's Artemis 2 moon mission is in trouble again after teams discovered a helium issue within the SLS rocket following successful wet dress rehearsal ...

NASA announced Joel Montalbano and Dana Hutcherson will serve as acting managers of Human Flight Programs, effective immediately.