it is with deep, heartfelt sorrow. I address you here this afternoon at 11:40 a.m. This morning Space program experienced a national tragedy with the explosion of the space shuttle Challenger.

For 73 seconds, a crowd of excited Americans looked to the sky in wonder and awe as they waved goodbye to the crew aboard ...

Sunday marks 38 years since the space shuttle Challenger lifted off on a chilly Florida morning and passed into history when the ship carrying seven astronauts -- one the first “civilian” in space, ...

The Challenger Learning Center is honoring its namesake in 2026, the 40th anniversary of the Challenger space shuttle tragedy.

When the Challenger space shuttle exploded a little over a minute after its launch in 1986, it pierced the dreams of millions about who watched the tragedy unfold live on television. It also ...