Thirty years ago on January 28, seven astronauts were killed when the Challenger space shuttle exploded just 73 seconds after launch. One of those seven astronauts was Christa McAuliffe.

It has been 40 years since NASA launched the first dedicated Department of Defense Space Shuttle mission, after which engineers spotted O-ring seal defficiencies that would doom Challenger a year ...

His crew mates inside Challenger would grab Solar Max with the shuttle’s robotic arm and place it in the cargo bay, where it would be repaired on a later spacewalk. In space, however ...

Andrew 'Andy' Freed is most well-known for being a Purdue professor, teaching notable classes taken by a large majority of ...