Forty years ago, the NASA space shuttle Challenger exploded 73 seconds after liftoff, killing all seven crew members. Among the seven crew members were five NASA astronauts, as well as a payload ...

From Mercury & Apollo Missions to the Space Shuttle Program, Mars Rover Landings, & Artemis II. In 1957, the beeps from Sputnik, a small Russian satellite, sent the Cold War between the Soviet Union ...

The space shuttle's seven crew members died, including one civilian teacher. The tragedy changed the course of NASA's future. On the morning of January 28, 1986, seven crew members were killed when ...