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Spectacular eruption: On June 7, 2011, SDO captured this image as a massive eruption lifted an enormous amount of cool, dark material into the corona. Most of that material fell back onto the sun, where the gravitational energy of the fall caused it to heat up to a million degrees and more. Scientists concluded that this event on the sun was a small-scale version of what happens as stars form and collect gases via gravity. Thus, AIA allowed us to study in detail a phenomenon that cannot be observed so closely anywhere else in the universe. Credit: NASA/SDO/AIA/LMSAL Read more: <a href="http:…
