Sunspot four times bigger than Earth is visible right now. Here`s how you can see it.
A sunspot has grown large enough to be visible from Earth without magnification—but only with proper eye protection.
Sunspot AR3310, a black area on the sun facing us, has grown large enough that it can be seen without a telescope, and is almost four ties the size of Earth. South Korean astronomer Bum-Suk Yeom shared a chart of the sunspot, comparing its size to that of Earth.
"A giant sunspot is crossing the sun's disk, and I could see it …