NASA's Artemis II rocket encountered a new helium flow issue and will rollback to the VAB. Here's what we know.

Add Yahoo as a preferred source to see more of our stories on Google. The launch of NASA's historic Artemis 2 moon mission slipped another month after ground teams uncovered issues with the massive ...

An issue with the SLS rocket's helium pressurization system is prompting the move. It can only be worked on while inside NASA's Vehicle Assembly Building.

NASA is exploring the properties of a metal alloy that shrinks as it is heated, as boffins in its Astrophysics Division think it may be needed if the planned Habitable Worlds Observatory (HBO) is to ...

Live updates from NASA's SpaceX Crew-12 astronaut liftoff aboard a Falcon 9 rocket Friday, Feb. 13, from Cape Canaveral Space Force Station.

Recent airborne science flights to Greenland are improving NASA’s understanding of space weather by measuring radiation exposure to air travelers and validating global radiation maps used in flight ...