Watch NOVAs

NOVA scienceNOW Episode 22 (Aug. 2009)

Explore the controversies behind genetic testing and genome sequencing, learn about algae fuel, follow an expedition to the Arctic Ocean seafloor, and meet a woman engineer designing prosthetic limbs controlled by human thought. Watch now (47 mins.)

NOVA scienceNOW Episode 21 (July 2009)

Follow a NASA satellite looking for water on the moon, see what ancient salt deposits reveal about life 250 million years ago, learn how bird brains are remarkably similar to our own, and meet a climatologist who digs for clues to climate change in the world's highest glaciers Watch now (47 mins.)

NOVA scienceNOW Episode 20 (July 2009)

Discover why picky eaters may have a genetic excuse, learn about a new strategy for capturing carbon dioxide from the atmosphere, see just how intelligent marine mammals can be, and meet a biomedical engineer who has figured out a way to make tiny livers in her lab. Watch now (47 mins.)

NOVA scienceNOW Episode 19 (July 2009)

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. Watch now (47 mins.)

NOVA scienceNOW Episode 18 (July 2009)

Join astronomers hunting for Earth-like planets, see how computers distinguish authentic art from forgeries, meet a spider biologist who studies sexual cannibalism, and learn about genes that may be involved in causing autism. Watch now (47 mins.)