Public domain
Returning Coronal Hole
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
A substantial coronal hole rotated across the face of the sun this past week and is again streaming solar wind towards Earth (Jan. 30 - Feb. 2, 2017). This same coronal hole was facing Earth about a month ago and has rotated into a similar position again. Coronal holes are areas of open magnetic field from which solar wind particles stream into space. In this wavelength of extreme ultraviolet light it appears as a dark area near the center and lower portion of the sun.
NASA Image and Video Library’s own descriptionCredit lineReturning Coronal Hole. NASA/JPL, 2017-02-06. Public domain. ID: PIA11177.
