Earth-based Observatories:
Humans have been learning about the heavens for centuries. As technology has developed so has our ability to scan the skies and learn more and more about our place in the universe.

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Oct 1608 - 1609:  First Optical Refracting Telescopes Documented Oct - Nov 1609:  Galileo Discovers Four Moons at Jupiter Show All Dates for EbO		05.31.07:  Massive Transiting Planet with 31-hour Year Found Around Distant Star 05.30.07:  California, Carnegie Team Reports 28 New Exoplanets, 7 New Brown Dwarfs 05.29.07:  Metals Not Needed for Construction? More Headlines
		Solar System Bodies: Our Solar System Large Millimeter Telescope