A massive eruption 74,000 years ago shook the planet, and archaeologists are using volcanic glass to figure out how humans made it through.
If you were lucky 74,000 years ago, you would have survived the Toba supereruption, one of the largest catastrophic events that Earth has seen in the past 2.5 million years.
While the volcano is located in what’s now Indonesia, living organisms acros... [7442 chars]

