Hubble Turns 24: 5 Biggest Discoveries

April 20, 2014 2:08 AM

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The Hubble Space Telescope turns 24 this month. The telescope launched on April 24, 1990, as a joint project between NASA and the European Space Agency (ESA). It has since observed more than 30,000 celestial objects and captured in excess of 570,000 pictures.

Every year, NASA and ESA release new images taken by Hubble to mark its anniversary. This year's colorful collection is of the Monkey Head Nebula, a region of star birth 6,400 light years away. The images reveal a dense knot of gas and dust against a background of bright glowing gas in the nebula al...

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