United States Geological Survey scientists have shared maps that show where ash would fall across the US if a Yellowstone ...

The new map shows where volcanic ash would fall in the event of a Yellowstone supereruption, with the supervolcano's last ...

Now, it's extremely unlikely that one of these supervolcanoes would go off anytime soon, let alone multiple eruptions at once. But, for curiosity's sake, what would happen if all the world's ...