Science & Health

All sciences, health & medical news

Have you heard that a giant asteroid is due to strike Earth sometime between Sept. 15 and Sept. 28?

If so, you probably thought it was a hoax. And you'd be right.

But some people who read "numerous recent blogs and web postings" about impending doom from space weren't sufficiently skeptical. NASA on Thursday sought to clarify:

Food Waste And Beef Fat Will Be Making Airplanes Soar

Aug 20, 2015

What do beef tallow and manure have in common with t-shirts and pine needles? Turns out you can make high-quality, low-carbon transportation fuel with all of them. A growing number of biofuel producers are teaming up with farms, meatpackers and waste management companies to tap gassy waste to meet new demand for renewable jet fuel and diesel for vehicles.

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Can Health Care Be Cured Of Racial Bias?

Aug 20, 2015

Jane Lazarre was pacing the hospital waiting room. Her son Khary, 18, had just had knee surgery, but the nurses weren't letting her in to see him.

"They told us he would be out of anesthesia in a few minutes," she remembers. "The minutes became an hour, the hour became two hours."

She and her husband called the surgeon in a panic. He said that Khary had come out of anesthesia violently — thrashing and flailing about. He told Lazarre that with most young people Khary's age, there wouldn't have been a problem. The doctors and nurses would have gently held him down.

Does This Phylum Make Me Look Fat?

Aug 20, 2015

We would all love a simple weight-loss plan. Beyond carbs and fats, some studies have hinted that a key group of gut microbes — from the phylum Firmicutes — might be more common among people who are overweight.

Thinner people, these studies suggest, might have more bacteria from the phylum known as Bacteroidetes. Maybe we just need to reestablish a Bacteroidetes-favoring gut to more easily lose weight, some people have said. A stack of diet books has already jumped on the notion.

The natural world is abuzz with the sound of animals communicating — crickets, birds, even grunting fish. But scientists learning to decode these sounds say the secret signals of African elephants — their deepest rumblings — are among the most intriguing calls any animal makes.

What if there were a way to take the waste heat that spews from car tailpipes or power plant chimneys and turn it into electricity? Matt Scullin thinks there is, and he's formed a company to turn that idea into a reality.

The key to Scullin's plans is something called thermoelectrics. "A thermoelectric is a material that turns heat into electricity," he says.

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North American bats have been disappearing for decades, and scientists are still sorting out why. Georgia Public Broadcasting's Grant Blankenship takes us to a swamp in the middle of Georgia where researchers are working to find answers.

The Chipotle Cultivate Festival in Kansas City, Mo., on July 18 had it all: an indie pop band onstage, long lines at the beer booths. It was like a Grateful Dead concert, only with free burritos.

But this and the three other Chipotle Cultivate events held across the country this summer were more than just a classic summertime music festival. Billed as offering "food, ideas and music," the festival offers a chance to "learn a free burrito," by going through four exhibits.

The Food and Drug Administration approved the first drug designed to increase a woman's libido.

The controversial decision was hailed by some doctors and advocates as a long-sought victory for women's health, but was condemned by others as irresponsible and dangerous.

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