- Planets
Seeing the moon’s water
Rocky details of our moon can be gleaned without the aid of visiting astronauts. The latest example: An orbiting spacecraft may have just spotted water locked within surface rocks.
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- Brain
Mapping the brain’s highways
A new map may explain why some brain injuries are worse than others. Even relatively minor injuries that disrupt message superhighways may have a more devastating impact than some seemingly catastrophic injuries.
- Brain
Hunger’s little helpers
Astrocytes were thought to be nothing more than support cells for neighboring nerve cells. A new study suggests they do much more. These brain cells may help control appetite, too.
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- Tech
Tracing a gem’s origins
Lasers identify the country — and even a mine — that a precious stone hails from.
- Planets
Europa’s watery underworld
Jupiter’s smooth, icy moon may hide giant lakes beneath the surface.
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QUESTIONS for Risso’s Dolphins
Questions for Risso’s Dolphins
- Animals
What’s for dinner? Mom.
Female spiders of one species make the ultimate sacrifice when raising their young: The mothers feed themselves to their children.
- Animals
Honey’s hidden helper
Scientists identify a substance in honey that helps bee bodies fight poisons.
- Earth
Earth’s big breakup
Powerful motions beneath the Indian Ocean unleashed a series of earthquakes near Sumatra.
- Life
Designing tomorrow’s burger
Many people enjoy biting into a juicy hamburger. But getting it to the table can be hard on the environment. That's why scientists are at work developing new forms of beef and other meats, ones that don't require slaughtering animals.
