The sun emitted a mid-level solar flare, an M7 class, on the morning of May 22, 2013.
On 5:24 a.m. EDT on May 17, 2013, the sun erupted with an Earth-directed coronal mass ejection or CME, a solar phenomenon that can send billions of tons of solar particles into space.
04.21.13 - The sun erupted three times over April 20 and 21, sending billions of tons of solar particles into space. The eruptions (called CMEs) were not Earth-directed.
04.16.13 - The CME impact on April 13 was weak but it still produced high latitude aurora. The sun emitted a mid-level flare, peaking at 3:16 a.m. EDT on April 11, 2013 accompanied by an Earth-directed CME.
03.17.13 - Friday's fast moving CME has reached Earth and sparked a mild geomagnetic storm. Will higher latitude skies be turned green for St. Patrick's Day?
03.13.13 - A coronal mass ejection (CME) began at 8:36 p.m. EDT on March 12, 2013, and may pass by three NASA satellites: Spitzer, Kepler and Epoxi. A second CME began at 6:54 a.m. EDT on March 13, 2013 and may pass Earth.