NOVA scienceNOW

Season 4 Episode 3: Marathon Mouse/Dinosaur Plague/Franklin Chang-Díaz/Space Storms

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.

Genre:

Documentary, News

Seasons:

6

Episodes:

40

Cast:

David Pogue, Ziya Tong, Peter Standring

Quality:

HD

Duration:

55 min

First Air:

2005

Rating:

8.0