The blast of cosmic rays from exploding stars.

Oldies Chawi physics professor at the Hebrew University of Jerusalem in Israel, said that every few decades. Massive stars in the Milky Way galaxy would run out of fuel and explode, which is called superclass Nova cosmic rays (high energy particles and gamma rays) will radiate out in all directions, and if the world is in the path of radiation. Will cause the ice age. If the world is cold weather anyway. Cosmic rays from the explosion of a star could become the world's ice and could cause species extinction risk when the orbit through the Milky Way spiral galaxy. This is a super site. Most Nova. Supernova explosion will occur every 150 million years.