The space shuttle Challenger explosion was a defining moment of the 1980s. Whether you were watching on TV or in person, chances are, you remember exactly where you were and how you felt.

The Space Shuttle Challenger disaster on January 28, 1986, killed all seven astronauts on board, but disturbing details later ...

It’s been 40 years since the Space Shuttle Challenger disaster. It was a day the nation slowly realized something had terribly gone wrong.

Gloria McMillan was a finalist for NASA's Teacher in Space program alongside Christa McAuliffe, who died in the 1986 explosion.

On Jan. 28, 1986, the Space Shuttle Challenger exploded 73 seconds after takeoff. All seven crewmembers on board were killed.

TODAY marks four decades since the Challenger space shuttle exploded just 73 seconds into its flight. Millions watched the disaster unfold live, as the tragedy was broadcast in schools and on TV ...

NASA's space shuttle Challenger exploded and broke apart Jan. 28, 1986, in the sky over East-Central Florida, killing the seven astronauts on board.

Through the tragedy, the lives and legacy of the crew have endured, and 40 years later, Christa McAuliffe is still changing lives.

A recent event involving a Russian satellite, the Luch/Olymp, which appears to have disintegrated in orbit, has raised alarming questions about the rising threats posed by space debris. The satellite, ...

Forty years ago, Americans were shocked when the space shuttle Challenger exploded 73 seconds after it launched on a chilly ...