#spaceexploration – by @astro.kenzie on Instagram
Teacher astronauts Christa McAuliffe and Barbara Morgan training for weightlessness inside of a KC-135 Stratotanker. McAuliffe was a high school teacher from my home state of New Hampshire, who was selected to join the NASA astronaut corps as part of the Teacher in Space Program, and Morgan was her backup. McAuliffe, along with the six other astronauts of STS-51-L, tragically lost her life today in 1986 when the space shuttle Challenger disintegrated 73 seconds after launch.