SOLAR ACTIVITY: Late on June 21st, something behind the sun's eastern limb exploded and hurled a coronal mass ejection into space: movie. The expanding cloud is not directed at Earth. The explosion could herald the emergence of a farside active region. Readers with solar telescopes should be alert for further activity.
Emerging sunspot 1022 is a member of new Solar Cycle 24. Credit: SOHO/MDI
