Massive solar flares captured in 3-D

Distance between orbiting STEREO craft allows better imaging of coronal mass ejections

WASHINGTON — For the first time, scientists can accurately assess the size, shape and speed of massive flares as they leave the sun, allowing better estimates of when the flares might strike Earth and cause widespread electronic disruptions.

FROM BOTH SIDES NOW These images of a coronal mass ejection, a massive solar flare (arrows), are part of a series captured December 12 and 13, 2008.