NASA Sees Monster Sunspot Growing Fast, Solar Storms Possible

Thursday, February 21, 2013
By Paul Martin

by Tariq Malik
SPACE.com
20 February 2013

A colossal sunspot on the surface of the sun is large enough to swallow six Earths whole, and could trigger solar flares this week, NASA scientists say.

The giant sunspot was captured on camera by NASA’s Solar Dynamics Observatory as it swelled to enormous proportions over the 48 hours spanning Tuesday and Wednesday (Feb. 19 and 20). SDO is one of several spacecraft that constantly monitor the sun’s space weather environment.

“It has grown to over six Earth diameters across, but its full extent is hard to judge since the spot lies on a sphere, not a flat disk,” wrote NASA spokeswoman Karen Fox, of the agency’s Goddard Space Flight Center in Greenbelt, Md., in an image description.

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