Learn how glaciers melt and contribute to seas rising in this animated explainer from NASA's Jet Propulsion Laboratory.

In July 1942, a heavily escorted Allied convoy set out across the Arctic, carrying vital supplies to the Soviet Union. As ...

Astronomers have discovered a once-dormant supermassive black hole springing back to life in a very dramatic and spectacular fashion, acting as a "cosmic volcano" blasting out an eruption that ...

One of the most vivid portraits of “reborn” black hole activity – likened to the eruption of a “cosmic volcano” spreading almost one million light-years across space – has been captured in a gigantic ...

MOUNT ETNA, Italy (AP) — Guides who take tourists to enjoy the striking views of Sicily’s Mount Etna are up in arms over tougher restrictions imposed by local authorities after a round of eruptions at ...