These images show the sudden appearance of bright aurora on Mars during a solar storm. The purple-white color scheme shows the intensity of ultraviolet light given off by aurora on Mars's night side before (left) and during (right) the event.
Not only is it aurora season in Alaska, its sounding rocket season! NASA started launching a series of five sounding rockets from the Poker Flat Research Range in Alaska to study the aurora. The first of these rockets for this year, a Black Brant IX, was launched in the early morning hours of February 22, 2017.