How a cold morning, failed O-rings, and flawed decision-making led to tragedy Forty years ago, Space Shuttle Challenger ...

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

Seven American spacefarers were killed in a tragic event 40 years ago today that has become widely known as the Challenger ...

On this day in 1986, millions watched on live TV as the Space Shuttle Challenger exploded moments after launch, Eliot Wilson ...

For the millions of people across the country and around the world that watched the tragic loss of Challenger live, the ...

The loss of the Space Shuttle Challenger and its seven brave astronauts 40 years ago inflicted a generational wound on the ...

Forty years ago today, disaster struck NASA’s human spaceflight program when the space shuttle Challenger exploded 73 seconds ...

Nasa’s avoidable tragedy exemplified 1980s overconfidence and haunted a generation, but the allure of space exploration endured ...

In the Challenger shuttle tragedy 40 years ago this week, two technologies – aerospace and television – flexed their muscles and revealed their tragic flaws.

Corrections & Clarifications: An earlier version of this story misstated the date of the Space Shuttle Columbia disaster. It occurred Feb. 1, 2003. For millions of Americans, it was an event that ...

Read about the tragic Challenger space shuttle disaster and the story of Christa McAuliffe, a teacher who dreamed of going to ...