Scientists have figured out what causes pulsating auroras, a rarely seen form of northern lights in the night sky. Then they tracked the particles to The Pas, Man., where an all-sky camera had captured images of the resulting pulsating aurora. Kasahara said he spent 10 years developing an electron analyzer that could take the space measurements. The satellite began taking measurements on March 23, 2017, and captured the plasma waves and electrons from the pulsating aurora in The Pas just four days later. Jaynes said the process that generates pulsating auroras transfers enormous amounts of energy from space into the Earth's atmosphere.

Source: CBC News February 14, 2018 18:00 UTC