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Issac Newton buildt the first ever reflecting telescope called Newtoian Telescope
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William Hershel discoveres Uranus after mistaking it for a comet. It is the first planet to be discovered beyond Saturn.
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Giuseppe discovers a planet orbiting between Mars and Jupiter and named it Ceres.
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Johann Gottfried Galle identified Neptune from the help of Urbain Le Verrier. Le Verrier has calculated the position and size of the planet from the effects of its gravitational pull on the orbit of Uranus. An English mathematician, John Couch Adams, also made a similar calculation a year earlier.
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Edwin Hubble discovered that the universe was expanding by, figuring out that the farther away a galaxy is, the faster it is moving away from us.
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In 1957 Russia launched the first artificial satellite Sputnik 1, into orbit, beginning the space age. The US launches its first satellite, Explorer 1, four months later.
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Laika was the first dog to be launched into orbit for human space flight.
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Russia takes the lead in the space race as Yuri Gagarin becomes the first person to orbit Earth in April. NASA astronaut Alan Shepard becomes the first American in space.
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Neil Armstrong steps on the moon, and is the first man ever on the moon.
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In 1972,Charles Thomas Bolton, was the first astronomer to present evidence that there was an existence of a black hole in space.
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NASA releases its first reusable space shuttle named Columbia and it makes its maiden flight.
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NASA's space flight program came to a hault when Space Shuttle Challanger explodes shortly after it launches.
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Was a space telescope launched into Earths orbit in 1990 and is still working today.
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Was the 5th person to walk on the moon but was also the oldest man on the moon.
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A new definition for a planet is born.
