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Space jump

Felix Baumgartner, an extreme athlete, took a major and record-breaking plunge. He jumped from the edge of the Earth's atmosphere—23 miles above—and landed safely after deploying a parachute after the free fall. (Red Bull Stratos/AP Photo)

Year in Review 2012: Astronomical Wonders

Once-in-a-lifetime astronomical events and monumental scientific achievements drove people to look to the skies and online on Yahoo! throughout 2012.