Mount Etna just got a full-body scan. While nothing serious was diagnosed this time around, similar scans might give warning of a future volcanic eruption.

The Sicilian volcano is almost always bubbling with activity, but despite this thousands of people live safely on its slopes. In 2002, however, there was an unusually violent eruption that geophysicists believe was caused by gas-rich magma rising within the volcano.

Now a team led by Domenico Patan