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The first telescope was built by Galileo in 1608.
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In 1610, Galileo looked at the night sky through the first telescope.
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Galileo made the drawing on the left in 1610.
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Around 1670, Sir Isaac Newton built a different kind of telescope. Newton's telescope used curved mirrors instead of lenses to focus light.
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Robert Goddard with the first American rocket to use liquid fuel. This rocket was launched in 1926.
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The USSR launched Sputnik 1 on October 4, 1957
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The answer came eight years After Kennedy's challenge, on July 20, 1969. NASA’s Apollo 11 mission put astronauts Neil Armstrong and Buzz Aldrin on the Moon.
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The last was Apollo 17. This mission landed on December 11, 1972.
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Skylab was launched in May 1973
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Skylab reentered Earth’s atmosphere in 1979, sooner than expected.
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The space station has had people on board since 2000.
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The second occurred during the takeoff of the Columbia on January 16, 2003.
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The Cassini mission has been studying Saturn, including its rings and moons, since 2004.
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The last repair mission to the Hubble happened in 2009.
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The International Space Station, as photographed from the Space Shuttle Atlantis in May 2010
