Space Exploration

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Sunday, May 28, 2017

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After 27 years and 39 flights, Discovery's wheels rolled to a stop for the very last time under the warm sun at the Florida spaceport's Shuttle Landing Facility,on Wednesday, March 9, 2011 at 11:57 a.m. EST

(16:57 GMT), capping a busy 13-day mission to the International Space Station.

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Where did our solar system come from? The advent of space flight and space-based telescopes gave us unexpected clues to how our solar system began.   National Geographic created this special series of videos explaining what we know on the birth of the solar system.

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Space Exploration Photo Gallery

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new exoplanet 0929

Is There Life There?

The star known as Gliese 581 is unremarkable in just about every way you can imagine. It's a red dwarf, the most common type of star in the Milky Way, weighing in at about a third of the mass of the sun. At 20 light years or so away, it's relatively nearby, the 117th closest star to Earth. You can't even see it without a telescope, so while it lies in the direction of Libra, it isn't one of the shining dots you'd connect to form the constellation. It's no wonder that the star's name lacks even a whiff of mystery or romance.