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.

The crew of the space shuttle Challenger honored us by the manner in which they lived their lives. We will never forget them, nor the last time we saw them, this morning, as they prepared for ...

Seventeen years after the Challenger disaster, another shuttle and its crew were lost in the ... 2011, when Atlantis landed at Kennedy Space Center in Florida. It had been more than 40 years ...