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Beasts of the Stellar Zoo [Slide Show]

One of astronomy's greatest conceptual revolutions began 100 years ago, when scientists demonstrated that stars follow specific patterns of brightness and color. [More]

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The Buzz On Beer And Soda Fizz

Soda and beer. Other than exhaling, bubbly drinks are our closest experience with releasing the greenhouse gas carbon dioxide . So as you confront steamy summer, which cold beverage is best--from an environmental perspective?

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The Periodic Table of the Cosmos: 100 Years of the Hertzsprung-Russell Diagram (preview)

Modern astronomy paints a vivid picture of the universe having been born in a cataclysmic bang and filled with exotic stars ranging from gargantuan red supergiants that span the size of a modest solar system to hyperdense white dwarf stars and black holes that are smaller than Earth. These discoveries are all the more remarkable because astronomers infer them from the faintest glimmers of light, sometimes just a handful of photons

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In Defense of Wishful Thinking

In my most recent post a nd others --and in chats with George Johnson and Robert Wright on Bloggingheads.tv --I rail against biological determinism and defend free will.

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NASA Faces Dearth of Leaders for Science Missions

By Eric Hand of Nature magazine When NASA invites proposals in 2013 for its next round of low-cost planetary missions, ideas are sure to be plentiful -- but not the leaders crucial to the missions' success. [More]

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New Green Farming Vital to End Global Hunger: U.N.

By Robert Evans GENEVA (Reuters) - A solid shift to green technologies in world farming is vital if endemic food crises are to be overcome and production boosted to support the global population, the United Nations said on Tuesday. [More]

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