Man's brain turned to glass by Vesuvius volcano ash cloud

Nearly 2,000 years after a young man died in the Vesuvius volcanic eruption, scientists have discovered that his brain was preserved when it turned to glass in an extremely hot cloud of ash.Researchers found the glass in 2020 and speculated that it was a fossilised brain but did not know how it had formed.The pea-sized chunks of black glass were found inside the skull of the victim, aged about 20, who died when…