Launched in October 2006, STEREO traces the flow of energy and matter from the sun to Earth. It also provides unique and revolutionary views of the sun-Earth system. STEREO, when paired with SDO, can now give us the first complete view of the sun's entire surface and atmosphere. Read more at: http://www.nasa.gov/mission_pages/ste...

Got questions about STEREO? Ask a scientist via @NASAGoddard on Twitter on Wed., Feb. 9, 2011, from 1:30-2:30 pm EST. Use hashtag #sun360.

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