O-ring erosion on Discovery would have disastrous effects a year later It has been 40 years since NASA launched the first dedicated Department of Defense Space Shuttle mission, after which engineers ...

One of the main elements of NASA’s Space Launch System (SLS ... but those don’t make a rocket stage any more than the Shuttle External Tank did by itself. (Photo Caption: Major join 2 of ...

On February 1, 2003, the space shuttle Columbia fell apart as it returned to Earth after spending more than two weeks in ...

For millions, it was an event that would be seared into their memories for the rest of their lives – on par with the Kennedy assassination and 9/11.

Corrections & Clarifications: An earlier version of this story misstated the date of the Space Shuttle ... from the external rocket tank during launch, which opened a hole in a shuttle wing ...