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by Rachel KaufmanPublished in National Geographic News2009-08-03 Denture wearers take note: Science is one step closer to growing replacement teeth “from seed.” Researchers at the Tokyo University of Science created a “tooth germ” from mouse stem cells, implanted the 500-micrometer (0.02-inch) germ inside a mouse’s tooth socket, and waited. A month later, a new tooth … Continue Reading

by Rachel KaufmanPublished in National Geographic News2009-07-28 Do you want your peas fresh, frozen, canned, or spurting out stars at ten times the rate of the Milky Way? Volunteers sifting through an online image bank called Galaxy Zoo have helped astronomers discover a new, rare class of galaxy dubbed the Green Pea. The spotters—calling themselves … Continue Reading