The space shuttle Challenger explosion was a defining moment of the 1980s. Whether you were watching on TV or in person, chances are, you remember exactly where you were and how you felt.

As if flying commercial planes wasn't stressful enough already, airlines are facing major safety issues because of SpaceX rocket explosions.

On Jan. 28, 1986, NASA’s 25th space shuttle mission, Challenger, left the launchpad in Cape Canaveral, Florida. Seventy-three seconds into flight, Challenger exploded over the Atlantic Ocean as millions of people watched.

Former astronaut and professor Terry Hart is opening up 40 years later about the friends and colleagues he lost on board the space shuttle Challenger explosion.

It’s been 40 years since the tragic Space Shuttle Challenger launch.

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

Instead, high-energy radiation and electromagnetic pulses dominate, posing serious risks to satellites, spacecraft, and technology.