Science WireSpace

Cascade of magnetic arches on sun

A dark solar filament above the sun’s surface became unstable and erupted on December 16-17, 2015, generating a cascade of magnetic arches. A small eruption to the upper right of the filament was likely related to its collapse, says NASA. The arches of solar material appear to glow as they emit light in extreme ultraviolet wavelengths, highlighting the charged particles spinning along the sun’s magnetic field lines.

This video, captured by NASA’s Solar Dynamics Observatory (SDO), was taken in extreme ultraviolet wavelengths of 193 angstroms, a type of light that is typically invisible to our eyes, but is colorized here in bronze.

Enjoying EarthSky? Sign up for our free daily newsletter today!

Image credit: NASA
Image credit: NASA

Bottom line: A video by NASA’s Solar Dynamics Observatory (SDO) shows
magnetic arches cascading across the solar surface on December 16-17, 2015.

Read more from NASA

January 21, 2016
Science Wire

Like what you read?
Subscribe and receive daily news delivered to your inbox.

Your email address will only be used for EarthSky content. Privacy Policy
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

More from 

Eleanor Imster

View All