Mercury astronaut

Astronaut

(October 21, 1950 - January 28, 1986) was a physicist and NASA astronaut. McNair died during the launch of the Space Shuttle Challenger on mission STS-51-L

Judith Arlene Resnik (April 5, 1949 ? January 28, 1986) was an American engineer and a NASA astronaut who died when the Space Shuttle Challenger was destroyed during the launch of mission STS-51-L

Was a United States Navy officer and a NASA astronaut. He is credited with conducting the first unscheduled extra-vehicular activity of the space program during Space Shuttle mission STS-51-D.