jun 132012
 
Spotting Ultrafine Loops in the Sun's Corona

  A key to understanding the dynamics of the sun and what causes the great solar explosions there relies on deciphering how material, heat and energy swirl across the sun’s surface and rise into the upper atmosphere, or corona. Tracking the constantly moving material requires state-of-the-art telescopes with the highest resolution possible.  An image of [continue reading]

apr 092012
 
SDO and STEREO Spot Something New On the Sun

One day in the fall of 2011, Neil Sheeley, a solar scientist at the Naval Research Laboratory in Washington, D.C., did what he always does – look through the daily images of the sun from NASA’s Solar Dynamics Observatory (SDO). The changes of a coronal cell region as solar rotation carries it across the solar [continue reading]