While reliably snow-blanketed holidays might seem a thing of the past in Maryland and other parts of the East Coast—including ...

The cryovolcanic "centaur" comet 29P/Schwassmann-Wachmann has erupted four times in less than 48 hours, becoming unusually ...

Katmai National Park and Preserve is a natural park and wild reserve of the United States in the south of Alaska, known as ...

Climate Action 15 profiles top founders, global activists, academics, and nonprofit and public-sector leaders tackling climate solutions.

Scientists aboard a U.S. Coast Guard icebreaker have discovered something unusual in the Arctic Ocean off northern Alaska: a ...

Encounter whales (and whale sharks, too) in quiet, relaxing destinations like the Maldives, Sri Lanka, the ice caps and Baja California Sur.