09.20.12 - By understanding the morphology, density and temperature of coronal cavities scientists can better understand eruptions on the sun and the space weather that can disrupt technologies near Earth.
09.04.12 - On September 1, 2012, a long, whip-like filament erupted on the sun. The eruption, called a coronal mass ejection, caused aurora near Earth on September 3.
08.24.12 - A series of CMEs on August 20, as seen by the SOHO satellite, produces one shaped remarkably like a incandescent light bulb.
08.13.12 - On July 23, 2012, a massive cloud of solar material erupted off the sun. NASA Goddard scientists clocked the giant cloud, known as a coronal mass ejection, or CME, at speeds between 1,800 and 2,200 miles per second.
07.23.12 - On July 14, 2012 a CME crashed into Earth's magnetic field and triggered the most sustained display of auroras in years, giving the world a taste of things to come when Solar Max arrives in 2013.
07.09.12 - As it turns away from Earth, AR1515 releases an M6.9 class solar flare.
07.07.12 - Anticipated for the past week, the sun finally releases an X1.1 class solar flare late on July 6.
05.17.12 - The sun erupted with an M-class flare that peaked at 9:47 PM EDT on May 17, 2012. A CME also burst from the sun at 9:48 PM EDT, traveling at over 930 miles per second.
04.20.12 - The solar cycle unfolds with seeming regularity every 11 years -- magnetic north and south pole flip -- now two upcoming papers show that the switch at bottom and top of the sun is not simultaneous.
03.12.12 - Geomagnetic storms at Earth are currently at a rating of G2 (moderate) on a scale of G1 to G5.
03.07.12 - The sun erupted with one of the largest solar flares of this solar cycle on March 6, 2012 at 7PM EST, an X5.4.
02.27.12 - The weak CME on February 26, 2012 did produce some amazing aurora for high latitude observers.
01.27.12 - Sunspot 1402 fires a parting shot as it rotates around the edge of the sun -- an X1.8 class solar flare and CME.
01.25.12 - The sun erupted late on January 22, 2012 with an M8.7 class flare, an earth-directed coronal mass ejection (CME).
01.19.12 - After a two month respite from Earth-directed solar events, the Sun sends an M3.2 class flare and CME our way.
01.19.12 - On July 6, 2011, a comet was caught doing something never seen before: die a scorching death as it flew too close to the sun. The chance to watch it first-hand amazed even the most seasoned comet watchers.
01.04.12 - In late November, the Solar and Heliospheric Observatory's (SOHO) online 'Pick of the Week' reached an impressive milestone: its 500th edition.
12.16.11 - An armada of spacecraft witnessed something that many experts thought impossible. Comet Lovejoy flew through the hot atmosphere of the sun and emerged intact.
12.19.11 - Another view of Comet Lovejoy's solar approach taken by Hinode.
10.04.11 - On October 2, 2011, an exceptionally bright comet headed toward the sun and disintegrated; moments later a large coronal mass ejection (CME) blew off the other side of the sun.