Space Shuttle Discovery — White, Dramatic, Photograph, International Space Station, Earth

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Moon Surface — Black, Dramatic, Night, Photograph, Craters, Lunar Maria

2560 × 1600

ISS view from a window

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Moon Surface — Gray

2560 × 1600

Full Moon Surface — Gray, Dramatic, Night, Photograph, Craters

1024 × 768

Moon Surface

1920 × 1080

Astronaut on Spacewalk — White, Dramatic, Photograph, Earth

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Moon with footprints

1200 × 1190

ISS silhouetted against the Sun

1600 × 1200

Full Moon Surface — Gray, Dramatic, Night, Photograph, Craters, Lunar Maria, Brown

1200 × 804

ISS transiting the Sun

1920 × 1440

Cratered Surface of the Moon — Black, Dramatic, Night

1024 × 768