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Massive Western heat wave, potential El Niño raise concerns about unpredictable, extreme weather.

Where we are today in space warfare is very similar to where air superiority was in the 1930s."

Radiocarbon results suggest a single origin and rapid diffusion through cultural transition networks.

Department of Energy's attempts to prop up coal can look pretty pointless.

Our view of Neanderthal life keeps getting more complex and vibrant.

Suit: The National Center for Atmospheric Research is to be terminated for no rational reason.

Meteor's fiery passage through the atmosphere was captured by a space-based lightning mapper.

State attorneys general won't get climate chapter removed from a legal manual.

Engineers have uncovered the mathematical rules fireflies follow to sync up their flashes.

When winning depends on intuiting a mathematical function, AIs come up short.