Featured Image: Astronaut photo of ash cloud from Mount Cleveland, Alaska, USA. ORIGINAL: http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=17285 SOURCE: Wikipedia Commons.  (Public Domain).

From Live Science

Turns out, the world’s biggest volcano is a whopping 400 miles wide, and it’s underwater. Powered by NewsLook.

Credit: Powered by NewsLook