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Mammoth Mystery

Mammoth Mystery - July 2008
A pair of mammoth skeletons is found locked together by their tusks. What happened?

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Of Mice and Memory

Of Mice and Memory - June 2008
Mice placed in enriched environments can recover lost memories, giving hope to those who study Alzheimer's.

Download (79.3 MB)


Obesity - October 2006
Examine the biology behind the compulsion to eat.

Download (76.3 MB)


Papyrus - November 2006
Scraps of writings from a garbage dump in ancient Egypt reveal what life was like 2,000 years ago.

Download (57.1 MB)

Personal DNA Testing

Personal DNA Testing - July 2008
Genetic testing to assess risk factors for a handful of serious illnesses is now commercially available. But is it a good idea?

Download (77.72 MB)

Phoenix Mars Lander

Phoenix Mars Lander - July 2008
NASA's latest robot has already found frozen water and is looking for more signs that the Red Planet could support life.

Download (74.81 MB)

Profile: Bonnie Bassler

Profile: Bonnie Bassler - January 2007
Her insight into how bacteria "talk" has launched a revolution in biological and medical research.

Download (59.8 MB)

Profile: Hany Farid

Profile: Hany Farid - June 2008
This self-proclaimed "accidental scientist" is a digital detective inventing new ways to tell if photos have been faked.

Download (85.22 MB)

Profile: Judah Folkman

Profile: Judah Folkman - July 2008
Once scorned for his ideas about how cancer grows, the late Judah Folkman is now hailed as a visionary.

Download (71.13 MB)

Profile: Karl Iagnemma

Profile: Karl Iagnemma - October 2006
An innovative MIT roboticist is also an acclaimed fiction writer.

Download (65.8 MB)

Profile: Arlie Petters

Profile: Arlie Petters - July 2007
A boy from a rural village in Belize grows up to become a world-class mathematician and cosmologist.

Download (53.9 MB)

Profile: Alfredo Quiñones-Hinojosa

Profile: Alfredo Quiñones-Hinojosa - July 2008
He jumped the fence from Mexico to work as a farmhand and ended up a leading brain surgeon.

Download (67.98 MB)

Profile: Pardis Sabeti

Profile: Pardis Sabeti - July 2008
By night she's a rocker. By day, she's a Harvard geneticist tracking the evolution of the human genome.

Download (52.37 MB)

Profile: Julie Schablitsky

Profile: Julie Schablitsky - July 2007
Meet an archeologist who is helping to rewrite the history of the Old West.

Download (59.4 MB)

Profile: Edith Widder

Profile: Edith Widder - July 2008
Meet a marine biologist and explorer who has engineered new ways to spy on deep-sea creatures.

Download (59.37 MB)

Saving Hubble

Saving Hubble - July 2008
Two teams of spacewalkers take on the risky mission of reviving the ailing Space Telescope.

Download (83.82 MB)

The Search for ET

The Search for ET - July 2008
Astronomers have their radio telescopes tuned to receive signals from alien worlds. But is anybody out there?

Download (73.25 MB)

Smart Bridges

Smart Bridges - July 2008
Can we engineer bridges that tell us what's wrong with them before it's too late?

Download (64.32 MB)

Space Storms

Space Storms - July 2008
Behind the dazzling display of the aurora borealis are space storms that could turn the lights off here on Earth.

Download (64.18 MB)

Stem Cells Breakthrough

Stem Cells Breakthrough - July 2008
Three separate teams overcome a biomedical hurdle—creating stem cells without the use of human embryos.

Download (88.18 MB)

T. Rex Blood?

T. Rex Blood? - July 2007
Preserved soft tissue, including possible blood vessels and red blood cells, are turning up in dinosaur fossils.

Download (82.2 MB)

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