On Jan. 28, 1986, the Space Shuttle Challenger exploded 73 seconds after takeoff. All seven crew members on board were killed. The disaster was one of the most significant events in NASA history, watched live by millions of people around the world.

Wednesday marked 40 years since the space shuttle Challenger accident that killed seven crew members. The mission was not just to launch satellites but to launch the first teacher in space.

For many in New Hampshire, the memory of the Space Shuttle Challenger disaster is still vivid, those who were in Florida for the launch say they will never forget it.

Today marks the 40th anniversary of the Challenger explosion. One of the crew members called South Carolina home.

Gloria McMillan was a finalist for NASA's Teacher in Space program alongside Christa McAuliffe, who died in the 1986 explosion.

Through the tragedy, the lives and legacy of the crew have endured, and 40 years later, Christa McAuliffe is still changing lives.

Forty years later, the memories of the Challenger explosion resonate deeply with students and teachers who witnessed it.

The 40th anniversary of the Challenger explosion stirs the memories of Long Island educators who watched the disaster on classroom TVs.

Forty years ago, Americans were shocked when the space shuttle Challenger exploded 73 seconds after it launched on a chilly day in Florida.

Framingham State University will host a memorial service for Christa Corrigan McAuliffe, class of 1970, and the rest of the Challenger Space Shuttle crew on Saturday, said the university.