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Can Mom's Pregnancy Diet Rewire Baby's Brain For Obesity?

Expectant moms are eating for two, but that isn't a license to indulge. A convincing body of research suggests that what happens in utero can set the stage for obesity. And a new study in mice suggests one way that poor maternal diet might play a role: by rewiring a part of the brain that regulates appetite.

Water Companies Can't Monitor All Chemicals, There's Too Many

Nearly two weeks after a chemical spill contaminated drinking water in West Virginia, the company involved revealed that it had spilled a second chemical too. Fortunately, officials don't think there was any added risk to the public. The fact that a second contaminant eluded detection reveals an important truth about drinking water supplies and how they're tested for contaminants.

Contagious Cancer In Dogs Leaves Prehistoric Paw Prints

Dogs can catch a strange type of cancer through sex. Now scientists have decoded the DNA of the tumor and found that the cancer cells are a living fossil of an ancient dog that lived thousands of years ago. This cancer doesn't affect people, but the findings may offer insights into how tumors fool the human immune system.

Weekly Innovation: A Radiation Detector In Your Smartphone

Scientists at the Idaho National Laboratory created and tested an Android app that could allow your smartphone to detect gamma radiation. They say the technology could be used as radiation detectors by first responders.

A Growth Factor Heals The Damage To A Preemie's Brain — In Mice

Scientists have shown that damage to the brain's "white matter" is responsible for many of the developmental problems that very premature infants often face. Now researchers have also demonstrated that it's possible to prevent that sort of damage in mice.

How A Little Chill In The Air Could Help You Lose Weight

Researchers in the Netherlands suggest that something as simple as lowering temperatures in the office or at home can help people burn calories as they keep their body temperatures steady. Chilling out to shed pounds works best in combination with diet and exercise.

Ancient And Vulnerable: 25 Percent Of Sharks And Rays Risk Extinction

"People know about the global trade in shark fins, but few know that some of the most valuable fins ... used in shark fin soup come from the sharklike rays — species like sawfishes and wedgefishes and guitarfishes," says Sonja Fordham, who contributed to a new analysis of the fisheries.

After Hibernation, Rosetta Seeks Its Stone

The Rosetta spacecraft has awakened. It was put in hibernation for 31 months while its orbit took it nearly half a billion miles from the sun, too far for its solar arrays to keep the spacecraft operational. But now it's close enough, and European Space Agency mission managers will start preparing for Rosetta's rendezvous with a comet later this year.

Whole Foods Bans Produce Grown With Sludge. But Who Wins?

Whole Foods recently decided it would not buy produce from farmers who used treated sewage sludge, also known as biosolids, on their fields. But scientists say this is a mistake — the material is safe and benefits the environment in lots of different ways.
WAMU 88.5

The Science Of Snowstorms And Weather Prediction

The Washington region is bracing for four to seven inches of snow today, followed by a blast of arctic air that will plunge temperatures into the single digits. We talk with Jason Samenow, from The Washington Post's Capital Weather Gang...