Aurora borealis

Rare clouds that give off bright, multi-colored light like an aurora were recently spotted at multiple locations in the Arctic. But what causes them?

A physics student and 'aurora chaser' got a special treat after reserving a cabin in Iceland: A storm surge of green auroras shimmering in the sky just overhead.

A slight bump in activity on the sun might make auroras shine as far south as Maine or Michigan, but that's only if observers can get around a massive winter storm in the region.

For the second time in less than two months, Norwegian skywatchers were stunned by extremely rare pink auroras which at moments turned into even rarer shades of orange.

On Nov. 3, a solar storm caused a temporary crack in Earth's magnetic field. The resulting hole enabled energetic particles to penetrate deep into the planet's atmosphere and set off extremely rare pink auroras.

A strange blue aurora has been spotted in the skies over Abisko, Sweden. Could a Russian submarine be the culprit of the mysterious light show?

Astronomer Aman Chokshi talks about indulging his passion for astrophotography during a year-long expedition to the South Pole where he's been working as an astronomer maintaining a unique telescope.

A Michigan-based aurora chaser got an unexpected treat last night when an aurora-like ribbon of glowing stripes paraded just above his head.

Violent activity on the sun last week resulted in stunning views for observers in the northern hemisphere over the weekend.

Space weather watchers observed a series of powerful flares between Aug. 27 and Aug. 29, the most powerful of which registered as a moderate M8-class flare.