St. James Town Library: UofT Astronomy: How the cosmos will kill you

The stars of the night sky appear gentle, peaceful and unchanging. But this is a lie. The Universe is a violent and catastrophic place, with dozens of tools at its disposal to wipe out all life on Earth with almost no warning. Astronomers are still only beginning to appreciate the true scope of the dramatic forces that drive the Universe's evolution.

With Dr. Bryan Gaensler from the Dunlap Institute for Astronomy & Astrophysics.