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More Reasons To Eat Your Fruits And Veggies

In a new study, researchers from McMaster University found that in people with a certain gene that elevates heart attack risk, a diet high in fruits and vegetables can help lower the risk. Dr. Sonia Anand explains the study, and what still needs to be learned about the gene.

Searching For Meaning In A Cheap Toaster

Carl Sagan once said that if you want to make an apple pie from scratch, you must first invent the universe. In his book The Toaster Project, author and artist Thomas Thwaites describes his effort to build a cheap plastic toaster from scratch, and what the project taught him about material goods, self-reliance, international commerce, and globalization.

Using DNA To Shape Nanostructures

Chemists and materials scientists are trying to learn to build ultra-small, precisely ordered structures for use in optics, electronics, and other applications. Writing in the journal Science, Chad Mirkin and colleagues describe a way to use snippets of DNA to tailor the shape and size of crystal structures, tweaking them to fit specific uses.

When Politics Meets Science

In his new book, Fool Me Twice, writer Shawn Otto tells why he thinks science is under assault in America. Otto, CEO and co-founder of Science Debate 2008, also explains why his "American Science Pledge" for candidates might bring more science into political decision making.

Contest Seeks To Launch Student Space Projects

The YouTube Space Lab competition is asking high school students to submit video proposals for space-based science experiments. Zahaan Bharmal, a Google executive who envisioned the competition, says that the winning entry will be performed on the International Space Station and streamed live on YouTube to the world.

In African Cave, An Early Human Paint Shop

Scientists have unearthed a tool kit for making paint in a South African cave. At 100,000 years old, it looks to be the oldest evidence of paint-making to date, and indicates higher-order thinking. "I think we're going to find that these early people were smarter than we think," an anthropologist says.

Naked Mole Rat's Genetic Code Laid Bare

The piggy-nosed, coldblooded animals are neither rats nor moles. But scientists hope the naked mole rat's newly sequenced genome may offer insights not only into aging but also cancer and other diseases.

Decoded DNA Reveals Details Of Black Death Germ

While the results are a technical tour de force, the researchers did not find any genetic feature that could explain why the Black Death was so virulent. In fact, the germ behind the medieval plague isn't much different from the one that causes bubonic plague today.

How Crossword Puzzles Unlocked An Artist's Memory

In 2007, artist Lonni Sue Johnson contracted viral encephalitis, leading to severe brain damage and amnesia. But language and crossword puzzles have unlocked Johnson's ability to remember how to play the viola and create simpler, childlike art — and that intrigues scientists at Johns Hopkins University.