Seven astronauts died when the Space Shuttle Columbia disintegrated upon reentry on Feb. 1, 2003. NASA Deputy Administrator Pam Melroy looks back on the tragedy and how it shaped the agency.

The successful splashdown of the spacecraft with no humans aboard keeps NASA's Artemis mission on track to put the first woman and first person of color on the lunar surface by 2025.

December 7, 1972 was the launch of the final mission in NASA's Apollo moon program. Fifty years later, NASA finally seems poised to return people to the lunar surface.

Astronauts could return to the moon in a few years, and if they do, they might be wearing spacesuits designed with the help of Georgia Tech's Thom Orlando. He's a professor of chemistry and physics and a co-founder of the Center for Space Technology and Research. 

The launch of the uncrewed space vehicle was scheduled for Tuesday but is being pushed back because Tropical Storm Ian might hit Florida next week as a hurricane.

A recurring leak of liquid hydrogen fuel forced NASA on Saturday to postpone a scheduled launch for the second time this week. The earliest possible launch date is Sept. 19.

The Artemis I mission is uncrewed, but that doesn't mean the spacecraft is empty. Lots of mementos are making the trip, along with manikins that will help NASA prepare to send humans back to the moon.