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Large Solar Flares Generate Geomagnetic Storm
March 8, 2012 — A pair of unusually large solar flares early March 7, 2012 generated a Coronal Mass Ejection that was expected to reach Earth around mid-day March 8. It will likely cause at least a strong ... > full story -
NASA Sees Second Biggest Flare of the Solar Cycle
March 7, 2012 — The leading edge of the first of two major coronal mass ejections will reach Earth at about 1:25 AM EST on the morning of March 8 (plus or minus 7 hours). Such a CME could result in a severe ... > full story -
Space Weather: Explosions on Venus
March 5, 2012 — A recent study has found clear evidence on Venus for a type of space weather outburst quite common at Earth, called a hot flow ... > full story -
Mysterious Electron Acceleration Explained: Computer Simulation Identifies Source of Aurora-Causing High-Speed Electrons in Space
February 28, 2012 — A mysterious phenomenon detected by space probes has finally been explained, thanks to a massive computer simulation that was able to precisely align with details of spacecraft observations. The ... > full story -
NASA Small Explorer Mission Celebrates 10 Years and 40,000 X-Ray Flares
February 9, 2012 — On February 5, 2002, NASA launched what was then called the High Energy Solar Spectroscopic Imager (HESSI) into orbit. Renamed within months as the Ramaty High Energy Solar Spectroscopic Imager ... > full story -
Milky Way's Black Hole Found Grazing on Asteroids
February 8, 2012 — The giant black hole at the center of the Milky Way may be vaporizing and devouring asteroids, which could explain the frequent flares observed, according to ... > full story -
Sun Delivered Curveball of Powerful Radiation at Earth
February 1, 2012 — A potent follow-up solar flare, which occurred Jan. 17, 2012, just days after the Sun launched the biggest coronal mass ejection seen in nearly a decade, delivered a powerful radiation punch to ... > full story -
'Cool' Gas May Form and Strengthen Sunspots
January 31, 2012 — Hydrogen molecules may act as a kind of energy sink that strengthens the magnetic grip that causes sunspots, according to scientists using a new infrared instrument on an old ... > full story -
Sun Unleashes an X1.8 Class Flare on Jan. 27, 2012
January 30, 2012 — The sun unleashed an X1.8 class flare that began at 1:12 PM ET on January 27, 2012 and peaked at 1:37. The flare immediately caused a strong radio blackout at low-latitudes, which was rated an R3 on ... > full story -
Astronomers Solve Mystery of Vanishing Electrons in Earth's Outer Radiation Belt
January 29, 2012 — Researchers have explained the puzzling disappearing act of energetic electrons in Earth's outer radiation belt using data collected from a fleet of orbiting ... > full storyMore:
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