NASA's SDO observes largest sunspot of the solar cycle
Saturday, October 25, 2014 - 03:30
in Astronomy & Space
On Oct. 18, 2014, a sunspot rotated over the left side of the sun, and soon grew to be the largest active region seen in the current solar cycle, which began in 2008. Currently, the sunspot is almost 80,000 miles across -- ten Earth's could be laid across its diameter.