Sunspot video: NASA's Solar Dynamics Observatory captures strange spot on the sun.

What Is This Strange Spot on the Sun?

What Is This Strange Spot on the Sun?

Slate in motion.
May 18 2014 1:05 PM

What Is This Strange Spot on the Sun?

Courtesy of NASA's Solar Dynamics Observatory.

NASA's Solar Dynamics Observatory recorded an unusually shaped, almost square, coronal hole on the sun.