What happens if a Supervolcano Blows Up

The Earth is a gigantic ball of semi-molten rock, with a heart of iron as hot as the surface of the Sun.

Titanic amounts of heat left over from its birth and the radioactive decay of trillions of tons of radioactive elements find no escape but up. Currents of rock spanning thousands of kilometers carry this energy to the surface. Earth’s crust is the only thing in their way…