NOVA scienceNOW - Marathon Mouse, Dinosaur Plague

Seizoen: 4 - Aflevering: 3 / 25 - Eerst uitgezonden: 14 juli 2009 - Episode ID: 428113

Watch how an "exercise pill" turns couch-potato mice into athletes, explore a controversial new theory of what killed the dinosaurs, meet the first Latino-American astronaut, and find out why the beautiful northern lights signal a threat to our electronic society.