Oil exploration will probably begin in Alaskan waters this summer, according to a top U.S. official, with more lease sales likely in the next four years.

By converting distant gamma-ray bursts to harp, cello and piano notes, NASA researchers say they've found a new way of 'listening to the universe.'

All three chicks have successfully fledged, but they'll likely hang around the nest for days or weeks before finally flying off into the sunset.

The fungus that causes white-nose syndrome has been found on a hibernating bat in Iowa, potentially extending the western frontier of a growing wildlife epidemic.