Add Yahoo as a preferred source to see more of our stories on Google. A triangular hole appeared in the sun earlier this week. Solar winds from it could hit Earth by Friday.Insider Two huge coronal ...

For the first time, scientists have taken near-daily measurements of the Sun’s global coronal magnetic field, a region of the Sun that has only been observed irregularly in the past. The resulting ...

A powerful new optics system has captured the clearest view yet of the Sun’s corona, revealing stunning plasma structures. Reading time 2 minutes The Sun’s outer atmosphere—the corona—is the piping ...