This photo provided by NASA shows the crew of space shuttle Challenger mission 51L. All seven members of the crew were killed when the shuttle exploded during launch on Jan. 28, 1986.

In 1986, the Space Shuttle Challenger exploded upon launch, killing the seven crew members on board. Christa McAuliffe, one of the crew members, was to be the first teacher in space.

In 1986, the Space Shuttle Challenger exploded upon launch, killing the seven crew members on board. Christa McAuliffe, one of the crew members, was to be the first teacher in space.

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

See a photo chronicle of NASA's space shuttle Challenger accident that killed seven astronauts, including teacher Christa MacAulliffe on Jan. 28, 1986.

According to NASA, Shuttle orbiter Challenger (OV-099) joined NASA’s fleet of reusable winged spaceships in Jul. 1982. It flew nine successful Space Shuttle missions until Jan. 28, 1986 when the ...

On February 7, 1984, 370 kilometres above the earth, NASA astronaut Bruce McCandless II floated into the payload bay of the ...

FILE - In this Jan. 28, 1986 file photo, the space shuttle Challenger explodes shortly after lifting off from the Kennedy Space Center in Cape Canaveral, Fla. Weaver, a Florida-based photographer ...

(Photo: The HISTORY Channel) ... 'Pulse 13' coverage of the space shuttle Challenger tragedy as reported by WTVT-TV in Tampa, then a CBS affiliate. Originally aired January 28, 1986.