In the early hours of February 2, with more than 700,000 gallons of cryogenic propellant flowing into the Space Launch System at Kennedy Space Center, a sensor flagged what mission controllers were hoping they would not see: hydrogen concentrations climbing past allowable limits at the tail service mast umbilical,

From famous space missions to making air travel safer, NASA Glenn Research Center, celebrating its 85th anniversary, continues to impact the world, infinity and beyond.

NASA's space shuttle Challenger completed 10 missions before it broke apart during a launch in 1986, killing seven astronauts.

The removal follows a noticeable pause in launches from the historic pad. The most recent Falcon 9 flight from LC-39A occurred on December 17, 2025, a departure from the site’s intense activity in 2025, when Falcon vehicles launched 165 times overall (though not all from 39A).

NASA's first tragedy is recalled annually at Launch Complex 34. This year is different, as the Artemis II mission sits on the horizon.

NASA's space shuttle Challenger exploded and broke apart Jan. 28, 1986, in the sky over East-Central Florida, killing the seven astronauts on board.

When the space shuttle Atlantis blasts off on Friday, it will mark the final NASA shuttle mission ever. But the shuttering of the 30-year-old program isn’t the end of American space exploration — in fact, according to NASA Administrator Charles Bolden ...

During the lead-up to NASA’s Artemis 1 mission back in 2022, recurring hydrogen leaks led to significant delays and a cancelled launch attempt. The agency had three years to address the underlying issues with the Space Launch System (SLS) rocket’s hardware, and yet, the Artemis 2 wet dress rehearsal felt all too familiar.

The rollout sets the stage for tests and dress rehearsals ahead of NASA's first crewed flight to the moon in more than 50 years. The mission could launch in three weeks.

The quartet's arrival will take the ISS back up to its normal complement of seven crewmembers. The station has been staffed by just three astronauts — one American and two Russians — since Jan. 15, when SpaceX's Crew-11 mission departed for Earth.