Did a supernova 6 million years ago kickstart evolution in Africa? New study offers a clue. - Livescience.com

A curious connection between an ancient supernova and virus diversification in one of Earth's biggest lakes means that crazy cosmic events may have had more influence on our planet than we thought.Radiation from an exploding star may have had a profound effect on the evolution of life on Earth, a new study suggests. About 2.5 million years ago, the viruses infecting fish in Africa"s Lake Tang…