Add Yahoo as a preferred source to see more of our stories on Google. Siena Garcia, center, takes an elevator with others during a simulated Mars expedition mission Jan. 16 at the Scobee Education ...

Add Yahoo as a preferred source to see more of our stories on Google. The Challenger shuttle crew: (back, L-R) Ellison S Onizuka, Christa McAuliffe, Greg Jarvis and Judy Resnick. (Front, L-R) Mike ...

At 8.15 a.m. on Jan. 28, 1986, New Hampshire social-studies teacher Christa McAuliffe sat with her six fellow astronauts ahead of the launch of the Space Shuttle Challenger from Kennedy Space Center ...

The two solid rocket boosters flew in different directions as the external fuel tank became a fireball.(AP: Bruce Weaver / File) Forty years ago, the Challenger space shuttle disintegrated just after ...

WASHINGTON — Wednesday marks 40 years since the NASA Challenger space shuttle exploded less than two minutes after takeoff, killing everyone aboard. Jan. 28, 1986, began a day filled with hope and ...

HOUSTON (CNN) — NASA's Space Shuttle Challenger lifted off 40 years ago with an unusual crew. In addition to six astronauts, the mission took flight with a teacher on board. Christa McAuliffe, the ...

The Christa McAuliffe Center for Integrated Science Learning plans several events to commemorate the 40th anniversary of the Space Shuttle Challenger disaster, which on Jan. 28, 1986, claimed the ...

Forty years ago, the world watched in horror as NASA's space shuttle Challenger exploded mid-air, killing all seven crew members aboard. The disaster occurred at what was then the pinnacle of the U.S.

WASHINGTON — It's been 39 years since the Challenger space shuttle explosion, one of NASA's most devastating tragedies. NASA's Challenger shuttle exploded 73 seconds after lifting off on Jan. 28, 1986 ...

How Long After Launch Did the Challenger Explode? It’s hard to believe that it’s been 40 years to the day since the Space Shuttle Challenger exploded just 73 seconds after liftoff, in front of the ...