Asteroid collision possible. Will we go the way of the dinosaurs? Enjoy every day ..  Rick Nelson

Asteroid danger upgraded: NASA today said the danger of a collision with the asteroid Bennu has risen. But don’t freak out. NASA says the 1,614-foot-wide asteroid, slightly bigger than the height of the Empire State Building, doesn’t cross our orbit for 161 years—and even then the chances of a collision aren’t that high, Nat Geo’s Michael Greshko reports.