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The new operating system includes user-friendly features, such as a personal assistant named Cortana. But its Wi-Fi Sense feature has sparked security concerns.

All the recent rain in Texas is great for insects — including the terrifying tarantula hawk. It's a big, nasty wasp that doesn't just sting tarantulas ... it turns them into food for its offspring.

Citing reports by NPR and Colorado Public Radio, 12 senators want the Army to investigate the discharges of tens of thousands of troops with mental health disorders.

Freezing is usually considered a way to make raw fish safer. But a recent outbreak of Salmonella in frozen, raw tuna used in sushi across the U.S. highlights the limits of the food-safety technique.

Buster Keaton, the great genius of silent comedy, gets celebrated in a 14-disc box set that contains all of his classic silent comedies as well as a raft of shorts and extras.

Reversing a trend that dates back to the 1990s, the lobbying industry is becoming more secretive. And campaign money now looms ever larger as a critical element in the persuasion business.

The days of made-to-order ice cream are far from over in San Francisco. A small shop that operates out of an old shipping container uses liquid nitrogen to freeze ingredients together in about a minute for an ultra-fresh, ultra-smooth treat.

A study of nearly 5,000 police officers in the U.S. and Canada finds 40 percent had sleep disorders. These sleepy cops had a greater likelihood of having sleep apnea, a disorder with big health implications. They were also much likelier to fall asleep while driving.

Monday night on PBS, American Masterspresents a two-hour biography of Johnny Carson. Carson retired 20 years ago this month, and vacated a throne that TV critic David Bianculli says no one has managed to claim since.

Scientists have found what they say is the world's oldest bed: a 77,000-year-old grass and leaf mattress in a cave in South Africa. And the people who made it were crafty: Atop layers of sedge grass were leaves from a plant known to repel insects — key for living in buggy, dank caves.