Skip to main content

Our Active Sun | Space Wallpaper

our active sun
The magnetic field of the sun reaches for the Earth through this large coronal hole in March of 2016. (Image credit: NASA/GSFC/Solar Dynamics Observatory)

Briefly in March of 2016, a long coronal hole looked on Earth. These features emerge when the solar magnetic field reaches up and out into the cosmos. The effect — solar winds carrying solar material mix with Earth's magnetic field creating a geomagnetic storm. Results of this storm include satellite exposure to radiation (causing communications interference) as well as possible gorgeous auroral displays. [Learn more about the sun.]

Join our Space Forums to keep talking space on the latest missions, night sky and more! And if you have a news tip, correction or comment, let us know at: