Partial Eclipse - UV Image
Image via SDO/NASA
On Tuesday (Feb. 21st, 2012) NASA’s Solar Dynamics Observatory watched as part of the moon crossed in front of the sun, creating a partial solar eclipse that was visible only from space. During the eclipse the moon briefly blocked an active region on the sun that had been spewing strong ultraviolet radiation into space. The resulting dip in the sun’s extreme ultraviolet emissions could help scientists figure out exactly how much of the energy output can be attributed to the active region.
(via: National Geo)
