Satellite Captures Northern Lights Over Iceland and Canada

Nature put on a dazzling light show over the North Atlantic this month, and a satellite had front row seats to capture it all.

On February 16, the northern lights shimmered across Iceland and eastern Canada during what scientists call a G1 geomagnetic storm. That's the gentlest type of storm on a five-level scale, but it was powerful enough to create ribbons of aurora visible from space.

NASA's Suomi NPP satellite spotted the glowing display using its Visible Infrared Imaging Radiometer Suite. The spacecraft captured two stunning views: one showing auroras stretching from Greenland to Iceland just before midnight, and another showing the lights dancing over Quebec and Newfoundland a few hours later.

The magic happens when charged particles from the sun collide with Earth's magnetic field. Our planet funnels these particles toward the poles, where they crash into gases in the upper atmosphere and release energy as light.

The colors tell a story about where these collisions happen. Green auroras, the most common type, appear when particles hit oxygen molecules between 60 and 90 miles up. Red auroras form when the same collision happens much higher, around 180 to 250 miles above Earth.

Blue and purple lights are rarer treats that show up during stronger storms. They happen when particles collide with nitrogen at lower altitudes, typically around 60 miles high.

Why This Inspires

Even a minor solar storm can create moments of wonder that connect people across thousands of miles. While the satellite images appear in grayscale, people on the ground likely saw curtains of green light with hints of magenta and red rippling overhead.

The Denmark Strait between Greenland and Iceland glowed with auroras, while residents of Montreal could look up and see the same cosmic dance playing out above their city. These displays remind us that we're all passengers on a planet constantly interacting with the universe around us.

Scientists track these storms not just for their beauty but to understand how solar activity affects our technology and atmosphere. Each aurora offers new data about the relationship between Earth and the sun.

The northern lights will keep painting our skies as long as the sun keeps sending particles our way, offering countless more chances to witness nature's most spectacular light show.