This claim was, in fact, true. McCandless was, indeed, the first astronaut to perform an untethered spacewalk on Feb. 7, 1984 ...

The Challenger tragedy was an unforgettable setback amid the hope that surrounded space travel The 1986 Space Shuttle Challenger explosion is a tragedy that defined a generation. Across the United ...

John Vellinger is the co-founder and former CEO of Techshot Inc., a research and manufacturing company based in Galena, ...

Thirty years ago on January 28, seven astronauts were killed when the Challenger space shuttle exploded just 73 seconds after launch. One of those seven astronauts was Christa McAuliffe.

Ron McNair (who later died on the space shuttle Challenger in 1986) and Fred Gregory (who after flying in space, went on to become a NASA deputy administrator.) "All of us knew that one of us ...

who was chosen to go into space in 1986 and teach a class on board the Challenger space shuttle. She and her fellow crew ...

In 1986 he somewhat reluctantly agreed to join the Rogers Commission, whose task was to investigate the Challenger disaster. The space shuttle Challenger had exploded a little more than a minute ...

LeClair was present at Kennedy Space Center in January 1986 when the Space Shuttle Challenger exploded 73 seconds into its ...

The telescope's original October 1986 launch was scrapped after the loss of the space shuttle Challenger. When the telescope finally became operational in 1990, it began to return unprecedented ...

Astronauts Story Musgrave (left) and Don Peterson float in the cargo bay of the space shuttle Challenger On 7 April in 1983, American astronauts Don Peterson and Story Musgrave bravely stepped out ...

The 1986 Space Shuttle Challenger explosion is a tragedy that defined a generation. Across the United States, both students and adults took time out of their days on the morning of Jan. 28 ...