Events
First stones of Stonehenge were laid
2600bcAristarchus suggests earth revolves around the sun and make's a distance estimate.
280bcNorth star discovered
169bcHeliocentric theory of the Universe is published
1545The First Telescope is made
1608Laws of planetary motion are made by Kepler
1609Galileo uses telescope to discover 4 of Jupiter's moons. The moons craters and the Milky Way
1609The first reflecting telescope was built
1668the beginning of spectral analysis of stars by Sir William Huggins
1863Edwin Hubble shows that galaxies exist outside of the Milky Way
1924Big bang theory
1927Pluto was Discovered
1930First Radio Telescope built
1932First Satellite Launched
1957Yuri Gagarin became the first man in space
1961Armstrong and Aldrin walk on the moon
1962Hubble telescope put into orbit
1990Mass UFO sighting
1997Internaltional Space Station launched
1998Pluto declared dwarf planet
2006NASA shut down by the former precsdent
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