Anyone with even a cursory knowledge of the 1986 explosion of the space shuttle Challenger knows it was a national tragedy. But dig a little deeper, and it's even more heartbreaking.

But in 2003 tragedy struck once again when the Columbia shuttle disintegrated ... we have been pioneers in space affirms that," believes Neal. The Challenger disaster will be remembered as a ...

War Thunder devs had to apologize over the weekend after players quickly noticed that a newly added loading screen featured ...

Thirty years ago on January 28, seven astronauts were killed when the Challenger space shuttle exploded ... videos several years after the shuttle disaster. Her lost lessons are now available ...

NASA marked the 20th anniversary of the space ... on Feb. 1, 2003, after a piece of fuel-tank foam came off and punctured the left wing during liftoff 16 days earlier. The shuttle broke apart ...