The Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory is essentially a series of cameras set up to take images of the Sun every few seconds and through a variety of filters. This video is a 16 hour series of data gathered by the 304Å filter. This filter is designed to show areas of cooler dense filaments and prominences of plasma above the visible surface of the Sun. The video shows activity in at the northeast limb on 2012-01-12 from 08:00 to 23:59. There are almost 1600 images used to make the frames for the video, so you're seeing real time sped up by almost 1000 times.

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