(CNN) - Wednesday marks the 40th anniversary of the Challenger space shuttle explosion. It was a moment of collective grief on Jan. 28, 1986, when the space shuttle exploded during a live broadcast.

It's now been 40 years since New Hampshire school teacher Christa McAuliffe died when the space shuttle Challenger exploded. All seven on board were killed when Challenger broke apart following ...

Forty years ago today, Americans were stunned, shocked and saddened when the Challenger space shuttle exploded 73 seconds after liftoff on a cold, cloudless day in Florida. A booster leak ignited the ...

It's just, it just numbed me. I was kept hoping that the vehicle could turn around and land in the emergency landing site here at Kennedy Space Center, but Unfortunately it couldn't. 7 people, 7 human ...

Their eyes were watching. Some knew something was wrong. Others were slow to realize. Soon everyone came to grief. Forty years ago Space Shuttle Challenger climbed into the clear amid blue skies over ...

Texas lawmakers have sought to move the space shuttle Discovery from Virginia to Houston's Johnson Space Center. New NASA administrator Jared Isaacman has suggested Discovery may remain in Virginia ...

Texas lawmakers have been pushing to move the space shuttle Discovery from Virginia to the Johnson Space Center in Houston. New NASA administrator Jared Isaacman has suggested Discovery may not be ...

Space Shuttle Discovery on display at the Smithsonian. Days after being sworn in as the head of NASA, Jared Isaacman indicated uncertainty regarding the move of the Space Shuttle Discovery from ...

After years of lobbying, legislation and public back-and-forth, the Space Shuttle Discovery still isn't headed to Houston—and new comments from NASA's administrator suggest it may never make the trip ...