Astronauts and Cosmonauts

Astronauts and cosmonauts are trained personnel who travel in space. “Astronaut” refers to an American or western European space traveler and “cosmonaut” refers to a Soviet or Russian space traveler. China calls its space travelers “taikonauts.”

Vostok 6

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Vostok 6

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A big step in space history

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Troubles in Space

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Troubles in Space

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Troubling changes during a space flight

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More Apollo 16

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More Apollo 16

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Having fun on the Moon

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Apollo 16

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Apollo 16

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Alone but busy at the Moon

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John Glenn

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John Glenn

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An enduring American legend

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Joseph Walker

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Joseph Walker

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One of America’s first astronauts

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Moon Trees

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Moon Trees

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Planting visitors to the Moon

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Why can’t we see stars in the pictures of spacewalking or moonwalking astronauts?

The stars aren’t visible because they are too faint. The astronauts in their white spacesuits appear quite bright, so they

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