The sun was visually dominated by three substantial coronal holes that rotated across its face the week of Sept. 8-10, 2015. Coronal holes are areas where the sun's magnetic field lines extend out into space and don't return ...
Sep 17, 2015 in Space Exploration
An active region viewed in profile put on quite a show of erupting plasma and looping arches on Sept. 22-23, 2015.
Sep 30, 2015 in Space Exploration