August 29, 2010
65 million years ago, an asteroid bigger than Mount Everest slammed into the Earth wiping out the dinosaurs. Are we in for the sam...Read more
October 6, 2010
Phil Plait explores what it would take for a deadly alien visitation to happen on Earth.
April 19, 2011
The death of a star is one of the most violent forces in the universe capable of causing huge planetary damage.