Yellowstone's supervolcano appears to have a magma cap that vents pressure and reduces the chances of a massive eruption ...

The cap works like a lid on a pot, keeping the pressure and heat created down below. And by finding a defined magma cap, researchers have also been able to determine that Yellowstone’s system ...

The cap allows those bubbles to rise upward before being transferred out of the system. Yellowstone’s iconic hydrothermal features are known to emit gases found within magma, like that below ...

The cap allows those bubbles to rise upward before being transferred out of the system. Yellowstone’s iconic hydrothermal features are known to emit gases found within magma, like that below ...