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Giving Mini Burgers To Mice Reveals The Good And Bad Of Cooking Meat

Cooked meat delivers more energy than raw meat, which may have given our human ancestors a big evolutionary advantage. It may also explain why today's humans have a hard time keeping off the pounds, according to researchers at Harvard University.
NPR

Biofuels Start To Take Off In The Airline Industry

This week, a Continental flight from Houston to Chicago used a biofuel blend made in part from algae, and Alaska Airlines will fly passengers using a fuel made in part from cooking oil. The fledgling environmental effort has many hurdles, as biofuel costs nearly six times as much as regular jet fuel.
NPR

IAEA Suggests Iran May Be Developing Nuclear Arms

The International Atomic Energy Agency has issued a new report on Iran's suspect nuclear program. It says Iran has conducted experiments that could only be useful in the development of a nuclear weapon. Guy Raz talks to NPR's Mike Shuster for more.
NPR

How Dogs Evolved Into 'Our Best Friends'

Naturalist Mark Derr says our friendship with dogs and wolves goes back thousands of years more than previously believed. His new book explores how the relationship between humans and wolves developed.
NPR

Nobel Prize-Winning Physicist Norman Ramsey Dies

If you want to know what time it is, a smart way to find out is call the U.S. Naval Observatory in Washington, D.C. We owe this accurate timekeeping to a man named Norman Ramsey. Ramsey died Friday at 96. It was his scientific research in the years following World War II that revolutionized how we keep track of time.
NPR

The Plutonium Problem: Who Pays For Space Fuel?

NASA has relied on a special kind of fuel, called plutonium-238, to power robotic space missions for five decades. that it sometimes seems easier to chart a course across the solar system than to navigate the budget process inside Washington, D.C.
NPR

For Copernicus, A 'Perfect Heaven' Put Sun At Center

In 1543, when Nicolaus Copernicus made the astounding claim that Earth revolves around the sun, not the other way around, his ideas were met with scorn. "It went against everything that your senses tell you. It went against common sense," says author Dava Sobel, who wrote a new book about the astronomer.
NPR

Nebraska May Play Key Role In Canada Pipeline Battle

TransCanada's proposed Keystone XL oil pipeline would cut through the Ogallala aquifer, a major water source that supplies about 80 percent of Nebraska's water for drinking and irrigation. Legislators have introduced bills preventing pipelines in environmentally sensitive areas.

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