sep 252012
 
Scientists Shed Light on Riddle of Sun's Explosive Events

  Four decades of active research and debate by the solar physics community have failed to bring consensus on what drives the Sun’s powerful coronal mass ejections (CMEs) that can have profound “space weather” effects on Earth-based power grids and satellites in near-Earth geospace.  A computer visualization of the Sun (red sphere) and its magnetic [continue reading]

aug 142012
 
New Warning System Could Predict Solar Flares

  Researchers may have discovered a new method to predict solar flares more than a day before they occur, providing advance warning to help protect satellites, power grids and astronauts from potentially dangerous radiation. This image from the Solar Dynamics Observatory’s Atmospheric Imaging Assembly (AIA) shows in great detail a solar flare and its prominence taken [continue reading]

aug 142012
 
One of the Fastest CMEs On Record Observed

  Some three weeks ago, on July 23, 2012, a massive cloud of solar material erupted off the Sun’s right side, zooming out into space, passing one of NASA’s Solar TErrestrial RElations Observatory (STEREO) spacecraft along the way. Using the STEREO data, scientists at NASA’s Goddard Space Flight Center clocked this giant cloud, known as [continue reading]