Mega-Comet: Everything You Need To Know About The Mysterious Ice Monster From Half A Light-Year Away

Dinosaur species large and small didn't just pass through the Arctic -- they made it their year-round home and probably developed wintering strategies like hibernation or growing insulating feathers, according to a new study

Ancient DNA Analysis Sheds New Light on Occupational History of Denisova Cave

Yukon-Kuskokswim in Colorful Transition: Remarkable Example of How Water and Ice Can Shape the Land