Image: Astronaut Mae Jemison suits up for launch, 1992

On Sept. 12, 1992, launch day of the STS-47 Spacelab-J mission on space shuttle Endeavour, NASA astronaut Mae Jemison waits as her suit technician, Sharon McDougle, performs a unpressurized and pressurized leak check on her spacesuit at the Operations and Checkout Building at Kennedy Space Center.