Today's Image

Tangled up in blue

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May 5, 2018

NASA’a Solar Dynamics Observatory (SDO) captured these images between April 24-26, 2018. Here’s NASA’s description:

The lone active region visible on our sun put on a fine display with its tangled magnetic field lines swaying and twisting above it … when viewed in a wavelength of extreme ultraviolet light. The charged particles spinning along these field lines illuminate them.

Image via NASA/GSFC/Solar Dynamics Observatory.

Bottom line: NASA SDO video shows the sun’s only visible active region putting on a fine display, viewed in extreme ultraviolet light, between April 24-26, 2018.

Eleanor Imster

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About the Author:

Eleanor Imster has helped write and edit EarthSky since 1995. She was an integral part of the award-winning EarthSky radio series almost since it began until it ended in 2013. She and her husband live in Tennessee, where they enjoy guitar playing and singing. They have 2 grown sons.