There's trouble brewing underground and it's no joke; Physicist Michio Kaku says a supervolcano beneath Yellowstone National Park is due to erupt. There's no way to determine precisely when the explosion will occur but scientists say the ground around the volcano has started to swell, indicating subterranean activity. It was a similar volcano that helped … Continue reading Physicist Michio Kaku on supervolcano: 'all you can do is run'