Season 4 (2009)

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Diamond Factory / Anthrax Investigation / Auto-Tune / Luis Von Ahn
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June 30, 2009

Episode 1 of Season 4 premiered on June 30, 2009

Hunt for Alien Earths / Art Authentication / Maydianne Andrade / Autism Genes
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July 7, 2009

Join astronomers hunting for Earth-like planets, see how computers distinguish authentic art from forgeries, meet a spider biologi...Read more

Marathon Mouse/Dinosaur Plague/Franklin Chang-Díaz/Space Storms
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July 14, 2009

Watch how an "exercise pill" turns couch-potato mice into athletes, explore a controversial new theory of what killed the dinosaur...Read more

Picky Eaters/Capturing Carbon/Sea Lions and Walruses/Sangeeta Bhatia
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July 21, 2009

Discover why picky eaters may have a genetic excuse, learn about a new strategy for capturing carbon dioxide from the atmosphere, ...Read more

Moon Smasher/Secrets in the Salt/Bird Brains/Lonnie Thompson
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July 28, 2009

Follow a NASA satellite looking for water on the moon, see what ancient salt deposits reveal about life 250 million years ago, lea...Read more

Public Genomes/Algae Fuel/Arctic Ocean Seafloor/Yoky Matsuoka
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August 18, 2009

Explore the controversies behind genetic testing and genome sequencing, learn about algae fuel, follow an expedition to the Arctic...Read more

Saving Hubble Update/Gangster Birds/Alfredo Quiñones-Hinojosa/How Memory Works
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August 25, 2009

Get an astronaut's view of the Hubble repair mission, find out why cowbirds are called "gangster birds," meet a Mexican immigrant ...Read more

Earthquakes in the Midwest/Sleep/Sang-Mook Lee/First Primates
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September 1, 2009

Using new data from cave stalagmites and the Mississippi riverbed to understand how and why earthquakes strike in the heartland; t...Read more