Space researchers and amateur photographers in Finland have categorized a new type of aurora, or northern lights. They call them “dunes.” Read more and see a video.

The warm water found flowing under Thwaites Glacier in western Antarctica helps explain its rapid melting. Thwaites is part of what's described the "weak underbelly" of the West Antarctic Ice Sheet. Its melting has implications for sea-level rise around the world.

Ever heard of a humphead parrotfish, or seen a worm-eating giant snail?! Here are 5 animals you might have never heard of, in a new video from the BBC.

Scientists studying tiny ancient meteorites have found evidence that Earth's atmosphere used to contain much more carbon dioxide, and maybe less nitrogen, than it does now.

The fossil of this new-to-science dinosaur offers a view into dinosaur-bird evolution.

New research shows that "severe" space super-storms occurred in 42 of the last 150 years. "Great" super-storms happened in 6 out of the last 150 years. The new work sheds light on the famous Carrington event of 1859, the largest super-storm in recorded history.

Researchers have discovered 4 new species of sharks that use their fins to walk, in waters off northern Australia and New Guinea.

"We found the world's oldest asteroid strike in Western Australia. It might have triggered a global thaw."

This Arctic whale has the only spiral tooth found in nature. But there’s more to the narwhal than its unique tusk.

Nearly a decade after the nuclear accident in Fukushima, researchers have found that wildlife populations are abundant in areas now devoid of human life.