12/04/2024

Biden plans sweeping effort to block Arctic oil drilling

The U.S. set aside 23 million acres of Alaska's North Slope to serve as an emergency oil supply a century ago. Now, President Joe Biden is moving to block oil and gas development across roughly half of it.

Searching for new asymmetry between matter and antimatter

Once a particle of matter, always a particle of matter. Or not. Thanks to a quirk of quantum physics, four known particles made up of two different quarks—such as the electrically neutral D meson composed of a charm quark ...

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