Gregory Jarvis and Judith Resnik BREVARD COUNTY • CAPE CANAVERAL, FLORIDA – Today marks the 39th anniversary of the Space Shuttle Challenger disaster (Mission STS-51-L), when the shuttle’s ...

On Earth, a NASA space suit weighs around 280 lbs (127 kg), but in microgravity, astronauts feel weightless, making mobility easier. Space suits endure temperatures from -250°F to 250°F (-157°C to ...

Crew members Dick Scobee, Mike Smith, Ronald McNair, Ellison Onizuka, Judith Resnik and Gregory Jarvis also died.McAuliffe was the first civilian teacher ever chosen for a space mission.Lessons ...

Smith, mission specialists Ronald McNair, Ellison Onizuka and Judith Resnik, and payload specialists Gregory Jarvis and Christa McAuliffe, who was expected to be the first teacher in space.

Commander Dick Scobee, Pilot Michael Smith, Mission Specialists Ellison Onizuka, Judith Resnik and Ronald McNair. Payload specialists Gregory Jarvis and Christa McAuliffe, the Teacher in Space.

In 1978, Ride was among the first women to enter NASA’s space program. Her groundbreaking compatriots were Judith Resnik, Anna Fisher, Shannon Lucid, Margaret Seddon and Kathryn Sullivan.

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Most people will never forget where they were when the Space Shuttle Challenger exploded ... Gregory Jarvis, Judith Resnik and teacher Christa McAuliffe. The flight was the shuttle program ...

and Judith Resnik, Payload Specialist Gregory Jarvis and Christa McAuliffe, who was to become the first teacher in space as part of NASA's Teacher in Space Project. The 37-year-old social studies ...

Corrections & Clarifications: An earlier version of this story misstated the date of the Space Shuttle Columbia ... Gregory Jarvis, Judith Resnik and teacher Christa McAuliffe.