Friday, April 27, 2012 at 1:47 PM
He's flown the space shuttle five times, and performed eight spacewalks to service the Hubble telescope. Now astronaut and astrophysicist John Grunsfeld heads up NASA's Science Mission Directorate, where he manages scientific investigations on the home planet--and beyond.
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This article is filed in: Space, Science
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Pictures Of The Supermoon, As The Whole World Saw It
Saturday's bigger, brighter moon inspired some beautiful photos.
Look Up: Tonight, 'Supermoon' Is Closer To Earth
The full moon tonight occurs when the moon is at its closest point in its orbit around Earth.
Photographers, Skywatchers Prepare For Supermoon
Expect the best time for photos just after sunset Saturday.
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