Anyone with even a cursory knowledge of the 1986 explosion of the space shuttle Challenger knows it was a national tragedy. But dig a little deeper, and it's even more heartbreaking.

NASA released McAuliffe's lesson notes and practice videos several years after the shuttle disaster. Her lost lessons are now available on the Challenger Center website. Here are the eight science ...

But what was more shocking was that the cause of the disaster might never be uncovered. The Challenger is the story of how Richard Feynman, one of America's most famous scientists, helped to ...

about the 1986 Challenger explosion. "And I told her it wouldn’t happen again," Collins tells PEOPLE. "And then just six months later, we had the Columbia accident, and I tried to talk to her ...

Based on a true story, an engineer working on the Space Shuttle Challenger discovers a potentially fatal flaw in the launch that could cost the lives of the astronauts on board. Unfortunately ...

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As a reporter, Ted covered major New England stories from the New Hampshire primary to the Challenger explosion. His vision as a news manager began in the early '90s when he embraced the internet's ...

A Western defence source told the BBC that the British-made and supplied Challenger 2 tank in Ukraine was initially immobilised by a mine. That mine explosion caused a fire in the rear fuel tank ...

Four space shuttle systems were built: the Columbia, the Discovery, the Atlantis, and the Challenger. The orbiter is as large as a midsize ...