The Northern Lights, as seen in the sky over Alaska the night of Feb. 16, 2017, from the Poker Flat Research Range north of Fairbanks.
The Northern Lights, as seen in the sky over Alaska the night of Feb. 16, 2017, from the Poker Flat Research Range north of Fairbanks. While skies were clear at Poker and the auroras were active, cloudy skies over downrange viewing sites prevented the launch of NASA sounding rockets carrying instruments to explore the Earth’s magnetic environment and its effects on Earth’s upper atmosphere and ionosphere.
Credit: NASA/Terry Zaperach