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‘Agent of Chaos,’ 1970s scifi artwork by Dean Ellis. From the 1978 book Tomorrow and Beyond: Masterpieces of Science Fiction Art

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This diagram shows our cosmic address at a glance. We see our planetary system around the Sun, our stellar neighborhood in our galaxy, our galaxy in the local group of galaxies, and our group in the entire universe.

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Anna Fisher - chemist and NASA astronaut (1979) Currently one of the oldest active American astronauts, in her long career at NASA she has been involved with three major programs: the Space Shuttle, the International Space Station and the Orion project.

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Chemist, medical doctor and NASA astronaut, Anna Lee Fisher became the first mother in space when she embarked on mission STS-51A on the space shuttle Discovery.

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“If you thought that science was certain - well, that is just an error on your part.” - Richard Feynman

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The Andromeda Galaxy photographed with a 12.5-inch telescope by amateur astronomer Robert Gendler.

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The woman who has made the longest single spaceflight is NASA astronaut Sunita Williams, who lived and worked in orbit for 195 days while serving on the International Space Station's Expedition 15 mission in 2007.

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Cleaning in Space and Zero Gravity

Have you ever thought your cleaning duties are too difficult to deal with? Find out what would be like if you were an astronaut and living in zero gravity.

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