When is an aurora not an aurora? Phenomena called 'Steve' and 'picket fence' are masquerading as auroras - Phys.org
phys.orgSubmitted by physorg8953 in science
The shimmering green, red and purple curtains of the northern and southern lights—the auroras—may be the best-known phenomena lighting up the nighttime sky, but the most mysterious are the mauve and white streaks called Steve and their frequent companion, a g…