The Sun unleashed two double coronal mass ejections (CMEs) within 24 hours (June 8 - 9, 2012). The first double eruption sent clouds of particles mushrooming at just about the same time in almost opposite directions. The second blasts sent two circular clouds out into space, again at almost the same time, followed by a smaller billowing out a CME below the Sun. STEREO's COR2 coronagraph blocks out the Sun (represented by the white circle) with the black disk so that we can see the faint features in the Sun's corona extending beyond the disk. This is from the Ahead spacecraft.

Credit: NASA/GSFC/Stereo

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