This week in science news, we found four supervolcano "megabeds," learned that the black hole at the heart of the Milky Way is spinning at near top speed, and debunked claims around tiny "alien" spherules discovered last year.
Researchers discovered four massive supervolcano megabeds that had been resting at the bottom of the Mediterranean Sea for up to 40,000 years. These deposits, between 33 and 82 feet (10 to 25 meters) in thickness, point to catastrophic events that have struck Europe every 10,000 to 15,000 years.
