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.

Seven astronauts lost their lives during the Challenger space shuttle disaster on Jan. 28, 1986. Four decades later, human ...

Forty years ago, the Challenger space shuttle disintegrated just after lift-off. A small team of engineers tried to prevent the tragedy.

On January 28, 1986, the space shuttle Challenger exploded shortly after liftoff, killing the seven crew members on board The space shuttle disintegrated over the Atlantic Ocean, just off the coast of ...

Forty years after the space shuttle Challenger disintegrated shortly after liftoff, the disaster remains one of the most consequential tragedies in U.S. spaceflight history.

NASA's space shuttle Challenger completed 10 missions before it broke apart during a launch in 1986, killing seven astronauts.

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.

Forty years after the Challenger disaster, the tragedy is remembered not only for the seven lives lost, but for the engineer ...

The morning of the Space Shuttle Challenger explosion 40 years ago still remains the coldest Jan. 28 ever on the Treasure ...

On a cold, sunny morning in Florida, after several scrubs due to weather, the launch was a highly-anticipated event.

On February 1, 2003, the space shuttle Columbia fell apart as it returned to Earth after spending more than two weeks in ...

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