On the night of Saturday, May 17, skywatchers in parts of the U.S. were treated to a dazzling display of auroras from a surprise geomagnetic storm. But then observers spotted something very weird. A…
On the night of Saturday, May 17, skywatchers in parts of the U.S. were treated to a dazzling display of auroras from a surprise geomagnetic storm. But then observers spotted something very weird. A…