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For holiday shoppers, retailers' approach to fees, returns and other practices can bring praise or anger. And when customers rant or rave, Consumer Reports takes note — and compiles them into its annual "Naughty and Nice" list of companies.

"They're policies and practices that people either felt were consumer-friendly or not," Consumer Reports senior editor Tod Marks tells NPR's Steve Inskeep. He adds that the list isn't related to the ratings his magazine is known for.

The nation's largest group of pediatricians is urging its members to write prescriptions in advance to enable teenagers to have fast access to the so-called morning-after birth control pill.

For the second time in two years, Cassini has spotted a Pac-Man-like feature on one of Saturn's moons.

As NASA puts it, it is a veritable "gamers' paradise." Just take a look:

What you're seeing there is the infrared image taken of the moon Mimas in 2010 and the other is of the moon Tethys taken this year. The red and yellow areas show the warmest places on the moon.

There are several exotic snake species that have become a problem in the Everglades. But for wildlife managers, the biggest headache is the Burmese python.

Earlier this year, researchers with the U.S. Geological Survey captured the largest Burmese python yet in Everglades National Park. Three USGS staffers had to wrestle the snake out of a plastic crate to measure it. The snake was a 17-foot-7-inch female carrying 87 eggs.

Wildlife managers are working to get a handle on the problem of exotic snakes in South Florida; but the snakes have already made a big impact.