Massive holes in the Sun’s corona spotted by NASA telescopes

Recorded on July 20-22, 2013 Massive trans equatorial coronal hole CH576 (ancient CH574-571) is into an Earth facing position and still spewing a lot of solar wind into space. A coronal hole is an unipolar magnetic field opens towards the interplanetary space. According to STAR: A high speed stream from CH576 could cause quiet to active conditions on July 25-26.