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Mammoth Mystery - July 2008A pair of mammoth skeletons is found locked together by their tusks. What happened?
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Of Mice and Memory - June 2008Mice placed in enriched environments can recover lost memories, giving hope to those who study Alzheimer's.
Obesity - October 2006Examine the biology behind the compulsion to eat.
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Papyrus - November 2006Scraps of writings from a garbage dump in ancient Egypt reveal what life was like 2,000 years ago.
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Personal DNA Testing - July 2008Genetic testing to assess risk factors for a handful of serious illnesses is now commercially available. But is it a good idea?
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Phoenix Mars Lander - July 2008NASA's latest robot has already found frozen water and is looking for more signs that the Red Planet could support life.
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Profile: Bonnie Bassler - January 2007Her insight into how bacteria "talk" has launched a revolution in biological and medical research.
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Profile: Hany Farid - June 2008This self-proclaimed "accidental scientist" is a digital detective inventing new ways to tell if photos have been faked.
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Profile: Judah Folkman - July 2008Once scorned for his ideas about how cancer grows, the late Judah Folkman is now hailed as a visionary.
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Profile: Karl Iagnemma - October 2006An innovative MIT roboticist is also an acclaimed fiction writer.
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Profile: Arlie Petters - July 2007A boy from a rural village in Belize grows up to become a world-class mathematician and cosmologist.
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Profile: Alfredo Quiñones-Hinojosa - July 2008He jumped the fence from Mexico to work as a farmhand and ended up a leading brain surgeon.
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Profile: Pardis Sabeti - July 2008By night she's a rocker. By day, she's a Harvard geneticist tracking the evolution of the human genome.
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Profile: Julie Schablitsky - July 2007Meet an archeologist who is helping to rewrite the history of the Old West.
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Profile: Edith Widder - July 2008Meet a marine biologist and explorer who has engineered new ways to spy on deep-sea creatures.
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Saving Hubble - July 2008Two teams of spacewalkers take on the risky mission of reviving the ailing Space Telescope.
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The Search for ET - July 2008Astronomers have their radio telescopes tuned to receive signals from alien worlds. But is anybody out there?
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Smart Bridges - July 2008Can we engineer bridges that tell us what's wrong with them before it's too late?
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Space Storms - July 2008Behind the dazzling display of the aurora borealis are space storms that could turn the lights off here on Earth.
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Stem Cells Breakthrough - July 2008Three separate teams overcome a biomedical hurdle—creating stem cells without the use of human embryos.
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T. Rex Blood? - July 2007Preserved soft tissue, including possible blood vessels and red blood cells, are turning up in dinosaur fossils.
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Created July 2008
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