In an unprecedented step, researchers crafted a detailed model compatible with the universe’s accelerated expansion.

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Steve Giddings is a University of California, Santa Barbara string theorist. A provocative branch of physics called string theory might explain everything in the universe, such as how matter came into ...

A provocative branch of physics called string theory might explain everything in the universe, such as how matter came into being and why space... A provocative branch of physics called string theory ...