X Marks the Spot: Powerful Flare Erupts on the Sun
Saturday, March 29, 2014 - 18:30
in Astronomy & Space
It's fitting that a powerful solar flare created a bright X-shaped pattern in this extreme ultraviolet view of the sun's disk, captured Saturday by NASA's Solar Dynamics Observatory. The blast rates as an X-class flare, which puts it in the most serious category of solar flares.