Lava in Hawaii, seismic shaking in Alaska and underwater rumblings near Oregon. Scientists say it’s not the end of the world, but it’s definitely worth watching.

True to form for July, another round of searing heat and stifling humidity is on the way. Here's how hot it may get, who will sweat the most and how long it will last.

Geologists working in Yellowstone National Park discovered a new pool of strange light blue water this spring. Using satellite imagery, they have now been able to determine exactly how and when this new feature was born.

A stalled front will bring the chance for heavy rain and flooding to the Ohio Valley and mid-Atlantic Friday into the weekend. Friday’s highest flood concern is across the Shenandoah Valley in Virginia, including places like Charlottesville and Harrisonburg. Heavy downpours could produce rainfall rates in excess of 3 inches per hour in places that don’t need anymore rain. A few severe storms will also be possible with damaging winds as the main threat.

Astounding video captured the moment a tornado ripped through homes and pushed down trees in Sauk City, Wisconsin. It was just one of multiple reported tornadoes spawned during a wild evening of severe storms in the state. Watch this video for the latest.