Source - Space Weather News for July 2, 2012: http://spaceweather.com
STRONG SOLAR FLARE: A big, active sunspot (AR1515) is growing on the
Earthside of the sun. This morning it erupted, producing an M5.6-class
solar flare that ionized Earth's upper atmosphere with a brief but
intense pulse of X-rays and extreme ultraviolet radiation. More
eruptions are in the offing as the sunspot turns to face Earth. Check http://spaceweather.com for more information and updates.
X-FLARE ALERTS: Would you like a call when solar flares are underway? X-flare alerts are available from http://spaceweathertext.com (text) and http://spaceweatherphone.com (voice).