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August 9, 2012 We've put together an infographic that explores how athletes' bodies have changed over the last century. Those physiques are shaped by years of training — and by the laws of physics.

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August 8, 2012 Glass buildings kill millions of birds each year when the animals crash into windows. By studying how birds interact with buildings, architects and ornithologists are trying to create special features designed to keep birds alive.

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August 1, 2012 For a time, posture contests were all the rage. They gave chiropractors a public relations boost when the profession was fighting for respect. The pageants helped build goodwill and support for licensure, a chiropractic historian says.

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August 1, 2012 Artists Judith and Richard Lang create sculptures from plastic they find washed up on a 1,000-yard stretch of beach in California.

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July 27, 2012 The International AIDS Conference isn't only about medical research. People from around the world met at its Global Village to share their experiences with the AIDS epidemic through music, art and dance. This year's highlights included a condom campaign and lube tasting booth.

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July 25, 2012 A handful of AIDS cases were first recognized in the U.S. at the beginning of the 1980s. By 1990, there was a pandemic. In 1997, more than 3 million people became newly infected with HIV. A multimedia chart lets you track the cases by country over time.

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July 24, 2012 How do you get women to rethink condoms made for them? Advocates are trying a fashion show and the world's longest chain of paper dolls at the international AIDS meeting in Washington. Female condoms are the only contraceptive initiated by woman that protects against HIV infection.

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July 21, 2012 In the 1980s, HIV/AIDS swept across the globe. It soon reached pandemic proportions. In the three decades since, advances in drug therapies have transformed the disease from a death sentence to a chronic illness. In recent years, public health officials have embraced the idea of "test and treat" – that everyone who has HIV should know it and get into treatment right away. With new drug regimens that can reduce the amount of HIV in the blood to undetectable levels, researchers now believe they can halt the spread of HIV and end the pandemic.

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July 19, 2012 Sure, you've got a world-changing idea — but can you explain it? This new collaboration challenges artists to illuminate the inventions of young scientists.

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July 19, 2012 HIV is like a jack-in-the-box. When the viruses bump into particular cells in the immune system, the viruses' shells pop open and their genes enter the cells. Experimental therapies for HIV could stop the virus from getting in.

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July 18, 2012 Americans' methods for commuting to work vary by city. Use this interactive map to explore how residents in different cities get to their jobs — by driving alone, carpooling or taking mass transit — and how long those journeys last.

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July 18, 2012 Sol Neelman, a former newspaper photographer, travels the world in search of offbeat and surreal sporting events. "It's got to make me laugh, it's got to be photogenic, and cheap beer is a bonus," he says.

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July 16, 2012 In front of this sound-activated camera, "some people scream inward and some people scream outward ... and some people go to crazy town," says photographer Billy Hunt.

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July 11, 2012 How much food could you buy per day if you were living at the poverty line? It depends on where you live.

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July 10, 2012 Green Card Stories is a photo project about people like Rino Nakasone, who was inspired by Michael Jackson to leave Japan and pursue dancing in California. Or Luis De La Cruz, who spent his teenage years living in an Arizona garage.

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