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.