Gemini 9 spacecraft during EVA as seen Astronaut Eugene Cernan

Sturckow in the orbiter flight deck gives instructions to the EVA astronauts

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NASA astronaut Anne McClain swaps filters inside the Kermit microscope

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Sturckow in the orbiter flight deck gives instructions to the EVA astronauts

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NASA astronaut Jessica Meir enters the International Space Station

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Astronaut Don Pettit works inside the Kibo laboratory module

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NASA astronaut Jonny Kim replaces orbital plumbing components

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NASA astronauts Anne McClain and Nichole Ayers are pictured during a spacewalk

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JAXA astronaut and Expedition 28 crew member Satoshi Furukawa

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Expedition 28 crew member and JAXA astronaut satoshi Furukawa

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STS-125 Astronaut Mike Good during SSATA chamber run

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GEMINI-TITAN (GT)-9 TEST - ASTRONAUT EDWARD A. CERNAN - PRELAUNCH - CAPE

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Astronaut James Irwin simulates using lunar surface geological tools

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Astronaut Butch Wilmore works outside the International Space Station

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Expedition 30 crew member and ESA astronaut Andre Kuipers training in SSTF

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Remote Manipulator System (RMS) - Astronaut Ride, Sally (Flyswatter) - JSC

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Remote Manipulator System (RMS) - Astronaut Ride, Sally (Flyswatter) - JSC

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Astronaut Jack Lousma at table with crew and flight surgeon before training

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Astronaut Nichole Ayers prepares mixture tubes containng research samples

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JAXA astronaut Kimiya Yui checks out a Global Positioning Satellite receiver

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ASTRONAUT COOPER, L. GORDON, JR. & FAMILY - PARADE - HOUSTON, TX

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NASA astronaut Anne McClain poses for a portrait inside the cupola

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Astronaut Suni Williams works outside the International Space Station

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STS-120 Astronauts Scott Parazynski and Doug Wheelock at NBL

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JAXA astronaut and Expedition 28 crew member Satoshi Furukawa

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