Article Image
News Link • Science

WISE Hunts Nemesis the 'Death Star'

• arclein
Originally, Nemesis was suggested as a way to explain a cycle of mass extinctions on Earth. The paleontologists David Raup and Jack Sepkoski claim that, over the last 250 million years, life on Earth has faced extinction in a 26-million-year cycle. Astronomers proposed comet impacts as a possible cause for these catastrophes.

Join us on our Social Networks:


Share this page with your friends on your favorite social network: