coronal mass ejections

After spending three years in a deep sleep of historic proportions, the sun is finally starting to wake up.

By Space.com Staff Published 16 April 11

One of the leading researchers studying the sun reveals the origins and lifecycles of sunspots.

By Lily Whiteman Published 10 December 10

One of the fastest big solar flares in years has been observed by NASA spacecraft watching the sun.

By Space.com Staff Published 5 August 10