Kathy Sullivan

Kathy Sullivan

Kathy Sullivan on her expedition to visit Challenger Deep, which sits at a depth of 10,928 meters (35,853 feet) in the western Pacific Ocean

Kathy Sullivan on her expedition to visit Challenger Deep, which sits at a depth of 10,928 meters (35,853 feet) in the western Pacific Ocean

Kathy Sullivan on her expedition to visit Challenger Deep, which sits at a depth of 10,928 meters (35,853 feet) in the western Pacific Ocean

Kathy Sullivan on her expedition to visit Challenger Deep, which sits at a depth of 10,928 meters (35,853 feet) in the western Pacific Ocean

Oct. 5, 1984, launch of history-making STS-41G mission during which Kathy Sullivan became the first U.S. woman to perform a spacewalk

Astronaut Kathy Sullivan on Oct. 11, 1984 Spacewalk

Astronauts Sally Ride and Kathryn Sullivan on 1984 Space Shuttle Challenger Mission STS-41G

Sally Ride and Kathryn Sullivan in 1984 on Mission STS-41G in 1984 aboard Space Shuttle Challenger

Kathy Sullivan prepared for a potential spacewalk during her second venture into space, STS-31. During the mission, the Discovery crew deployed the Hubble Space Telescope.