Image of sunspot AR 2192 Alan Friedman/Randall Shivak/Averted Imagination hide caption
solar flares
NASA's Solar Dynamics Observatory spacecraft captures Wednesday's solar flare eruption. NASA/SDO hide caption
A coronal mass ejection (CME) exploding off the surface of the sun in an image captured Tuesday by the European Space Agency and NASA's Solar and Heliospheric Observatory. Uncredited/AP hide caption
Coming At You: An image created by NASA combines two pictures from its Solar Dynamics Observatory. One shows the location of a large sunspot; the other shows Tuesday's massive solar flare. NASA/SDO hide caption