Hot ash cloud from Mount Vesuvius’ eruption turned human brain tissue into glass, study finds

The eruption of Mount Vesuvius 2,000 years ago turned a victim’s brain tissue into glass. Scientists say they have figured out how this unusual phenomenon occurred.

​ The eruption of Mount Vesuvius 2,000 years ago turned a victim’s brain tissue into glass. Scientists say they have figured out how this unusual phenomenon occurred. Read More Breaking News, Latest News and Videos | CNN