Images showing two, then three coronal mass ejections 13 June 2001 taken by LASCO C2. Rarely has SOHO seen three CMEs in a LASCO C2 image because these blasts usually disappear from its field of view too quickly.  CMEs eject a billion tons of particles traveling millions of miles an hour. The dark disk blocks the Sun so that the LASCO instrument can observe the structures of the corona in visible light.

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