NASA selected the first U.S. women astronauts on this day in 1978.
See images of U.S. astronauts at work in space.
Gallery of people and technology
Astronauts
Alan Shepard stamp
Alan Shepard ready for blastoff
Alan Shepard and Freedom 7
Mercury Astronauts
Columbia Crew
Commander Collins
Astronauts Davis & Jemison
Astronaut Doi
Jet-propelled backpack
President Nixon & Apollo crew
Apollo 11 crew in quarantine
Russian space station
Astronauts Sullivan & Ride
A light snack
Apollo 11 astronaut
Rockets
Mars Exploration Rover
Deep Space 1 launch
Atlantis lands
Atlantis rides back to Florida
Cassini launch
Shuttle night launch
Endeavor works on Space Station
Space Station when complete
Space Station with Progress module docked
Endeavor launch
Mississippi Test Facility, 1969
Apollo 9 Lunar Module "Spider"
Mars Pathfinder Rover
Apollo 11 on Saturn V
Launch of Terra satellite
Spacecraft
'A-train' satellites
Aqua satellite
Aura satellite
Aura satellite
CloudSat
CloudSat
Dawn to the asteroids.
Deep Impact studied a comet.
Deep Space 1 and asteroid
Galaxy Evolution Explorer
Galileo at Jupiter
Next generation GOES-R
GOES weather satellite.
Herschel Space Telescope
ICESat
Jason-1
Juno at Jupiter
Landsat-7
LISA mission
Mars rover descends
Spirit's first look around
Rover falls through Mars' atmosphere
Opportunity self-portrait
Opportunity looks at a rock
Messenger at Mercury
New Horizons at Pluto
NOAA-19 weather satellite
Rosetta comet orbiter and lander
Opportunity's landing site
Spitzer Space Telescope
Space Technology 5 mini-sats
Stardust at comet
Stardust returns to Earth
Stardust-NExT and comet
Terra satellite, with MISR
'Tumbleweed' robot
Voyager
WISE infrared telescope-
Space Shuttle Endeavour 
Space Shuttle Endeavour
