Galileo Galilei photo 11 months 0 The unstoppable astronomer photo 12 months 0 Prague Astronomical Clock photo about 2 years 0 California, Astronomer, Observatory photo almost 3 years 0 Amateur astronomer photo almost 3 years 0 star trails sm photo almost 3 years 0 Amateur astronomer at work photo almost 3 years 0 Half Moon photo almost 3 years 0 Prague astronomical clock photo almost 3 years 0 Horloge astronomique de Besançon photo almost 3 years 0 Villa de Charles-Eugène Delaunay photo almost 3 years 0 Derrière la magie... photo almost 3 years 0 Moon #2 photo almost 3 years 0 Crew Test photo about 3 years 0 Apollo Prime Crew photo about 3 years 0 John Blaha photo about 3 years 0 Mike Mullane photo about 3 years 0 Sunita Williams photo about 3 years 0 John Grunsfeld photo about 3 years 0 CC Williams photo about 3 years 0 John Herrington photo about 3 years 0 Astronaut Michael Good Spacewalk photo about 3 years 0 Nancy Currie photo about 3 years 0 John Herrington photo about 3 years 0 Apollo 17 Departure photo about 3 years 0 Bob Curbeam photo about 3 years 0 Astronaut Tim Peake EVA photo about 3 years 0 Jack Fisher photo about 3 years 0 Serena Auñn-Chancellor On The International Space Station photo about 3 years 0 Astronaut Edwin Aldrin Deploying Solar Wind Composition Experiment photo about 3 years 0 Extravehicular Mobility Unit (EMU) Preparations For STS-119 Extravehicular Activity (EVA) 2 photo about 3 years 0 Astronaut Al Worden photo about 3 years 0 Janet Kavandi Spacewalk Practice photo about 3 years 0 Linda Godwin On Spacewalk At Mir photo about 3 years 0 Winston Scott During EVA photo about 3 years 0 Robot Camera Retrieval photo about 3 years 0 Greg Harbaugh And Mario Runco Emerge From Airlock photo about 3 years 0 Apollo 12 Lunar EVA Training photo about 3 years 0 John Young photo about 3 years 0 Kathy Sullivan Dons Her Suit photo about 3 years 0