Challenger

It has been 30 years since the Space Shuttle Challenger exploded off the coast of Cape Canaveral. All seven crew members, including teacher Christa…

It has been 30 years since the Space Shuttle Challenger exploded off the coast of Cape Canaveral. All seven crew members, including teacher Christa…

The explosion of the space shuttle Challenger in 1986 "was a trauma to the nation's psyche," says Sen. Bill Nelson, a former astronaut. But NASA and the American public have learned a few things about space science since then.