10.19.11 - Solar Week provides a week-long series of web-based educational activities for classrooms about our magnetic variable star, the sun, and its interactions with Earth and the solar system.
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.
09.22.11 - Our increasingly active Sun produced a large CME yesterday evening and an X1.4 class flare this morning. This increased solar activity is a normal byproduct as the sun approaches solar max.
09.20.11 - The sun let loose with at least six coronal mass ejections (CMEs) from 7 PM ET on September 18, 2011 until 1 PM on September 19. One may impact Earth and spark aurora tomorrow.
09.22.11 - This view of the aurora from Earth orbit was taken from the International Space Station as it crossed over the southern Indian Ocean on September 17, 2011.
09.12.11 - After last week's flurry of strong flares from sunspot 1283, solar activity is subsiding as this sunspot rotates over the sun's western limb. Aurora from last week's solar activity will be dancing in the sky for the next several day.
09.08.11 - The first of what will likely be several CME hits occurred this morning sparking a strong geomagnetic storm. Additional hits will occur over the weekend.
09.07.11 - Sunspot 1283 erupted with another flare yesterday that peaked at 6:20 PM ET. This was an X2.1 class flare, some four times stronger than the earlier flare.
09.06.11 - At 9:35 PM ET on Labor Day, the sun emitted an Earth-directed M5.3 class flare as measured by the GOES satellite.
08.15.11 - What were once bare black octagonal boxes are now recognizable as full-fledged spacecraft, each laden with propulsion systems, power and avionics systems. NASA has approved a new launch readiness date of August 15, 2012.
08.09.11 - On Aug. 9, 2011, the sun unleashed an X6.9 class flare. Though not Earth directed, we may experience radio and communications blackouts.
08.08.11 - The August 5, 2011 arrival of the combined August 3 CMEs caused many photographers in the northern U.S. and Europe to race outside with their cameras to record the colorful skies. They were not disappointed.
08.01.11 - Active solar region 1261 let loose with a short-lived M9.3 flare on Friday Night. No Earth directed affects are expected.
07.21.11 - Astrophotographer Thierry Legault captured what might be the last picture of Atlantis in space--and it was a solar transit.
07.15.11 - NASA is postponing the launch of two suborbital sounding rockets from the Wallops Flight Facility in Virginia on July 15 to no earlier than 2012.