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What causes the bright streaks in the night sky when we see shooting stars? Science correspondent Joe Palca ventured down to Venice Beach to demonstrate how meteor showers work.

Regularly consuming cranberry juice can help stave off urinary tract infections, a new study finds. UTIs account for 7,000,000 doctor's office visits and about 100,000 hospitalizations in the United States.

The interviews are part of an ongoing investigation of government scientists who described seeing dead polar bears in Arctic waters in 2006. Investigators were apparently interested in archived aerial surveys, suggesting their probe remains focused on the scientific integrity of the 2006 paper.

Adelie penguins, which breed in huge colonies on the rocky Antarctic Peninsula, harbor a version of the avian influenza virus. But this strain doesn't make humans or the birds sick.

A British mathematician proclaimed in 1906 that there's a better way to cut a cake than dividing it into wedges. Now a video by Alex Bellos is bringing his method back to life.

The coming-of-age story isn't new, but a couple of new novels based on this theme stand out. Alan Cheuse reviews Looking for Salvation at the Dairy Queen, by Susan Gregg Gilmore, and The Flowers, by Dagoberto Gilb.

Author Kate Christensen says the book "packs a wallop in a small amount of space, satisfies without satiating, and goes down easily, pithy and nutritious and sweetly briny."

The food pyramid is an American icon. But a new Harvard study says people are healthier if they eat fewer carbohydrates and more fat than it recommends. Nutritionists are calling for a new pyramid and a revamping of government guidelines for a healthy diet. NPR's Richard Knox reports.

Essayist Bonny Wolf grew up in the Midwest, where it wasn't always easy to find oysters for Thanksgiving. She tries to eat them every chance she gets, holiday dinner or not.

Writer-director Noah Baumbach has made some of the most talked about indie films. He's back with: "While We're Young." Los Angeles Times and Morning Edition film critic Kenneth Turan says its one of his best.