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Many older women get bone scans every two years to look for signs of osteoporosis. But for the vast majority of people, the repeat scans don't detect significant changes. New research suggests it may make sense to stop or slow down on the scans after people have had an initial test.

The Danish company that makes pentobarbital has refused to supply any more of the drug because the European Union opposes the death penalty.

An entrepreneurial 13-year-old's device allows you to video chat with your dog and dispense treats with a digital command. She's hoping it will help with separation anxiety — both for humans and pets.

Nearly half the horn players in an Australian study noticed that they'd lost some of their hearing. Among the younger horn players, hearing tests found that up to one-third of them had noise-related hearing deficits.

The FBI released its preliminary findings in its investigation of the Navy Yard shootings that left 13 people dead including the shooter. Aaron Alexis said he committed the massacre because he was being attacked by electromagnetic waves.

Hasan Rouhani spoke of moderation and said Iran was willing to talk to the West about its nuclear program. The U.S. and its European allies have reacted with cautious optimism, but not everyone is buying the new Iranian leader's charm offensive.

The win by the U.S. defender, down seven races just a week ago, caps one of the most spectacular comebacks in yachting history.

As work begins on the infrastructure, stadiums, hotels and other things being built in Qatar for soccer's 2022 World Cup, a disturbing number of immigrant workers are dying. There are reports of food, water and pay being withheld. Officials vow to change things.

The judge said that the state's current system of civil unions still leads to unequal treatment, which runs afoul the state constitution's guarantee of equal protection. The state is expected to appeal this decision.

Lawrence Lessig was not pleased when Liberation Music persuaded YouTube to take down one of his online lectures because of an alleged copyright violation. So Lessig, one of the most famous copyright attorneys in the world, decided to take a stand against broad, intimidating takedown notices.