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.
On the night of April 24 and the morning of April 25, 2013, the sun erupted with two coronal mass ejections (CMEs), solar phenomena that can send billions of tons of solar particles into space.
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.
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?
A small, Earth-directed Coronal Mass Ejection erupted early this morning.
One of the two slow-moving ejections from Jan. 23 is Earth-directed. In the past, CMEs of this speed have not caused substantial geomagnetic storms.
On Jan. 13, 2013, at 2:24 a.m. EST, the sun erupted with an Earth-directed coronal mass ejection or CME. The CME left the sun at speeds of 330 miles per second and is expected to impact Earth around Jan. 16.
On Dec. 15, 2011, NASA's Solar Dynamics Observatory captured footage of Comet Lovejoy approaching the sun. The images and data collected by NASA's solar observing fleet can help scientists learn more about the sun itself.