A mysterious ailment causing fish in the Florida Keys to spin in circles and die has touched off a race to find the cause and save the endangered sawfish.
Night skies were lit up by the northern lights Friday in locations the auroras don't normally shine as a severe solar storm supercharged the phenomenon.
A severe solar storm may supercharge the northern lights from Friday through the weekend, with a chance to see auroras as far south in the U.S. as Alabama.