MAGNETIC CRACK SPARKS RARE BLUE AURORAS: Yes, there really are cracks in Earth's magnetic field. One of them opened on Feb. 18th, sparking some of the strangest auroras in years--including rare blue auroras over Norway. At the time of this writing, a G1-class geomagnetic storm is still underway on Feb. 19th. Visit Spaceweather.com for updates.
Above: Blue auroras over the Lofoten Islands of Norway on Feb. 18, 2020. Credit: Matthew Steinberg.
