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Bizarre quantum bonds connect distinct moments in time, suggesting that quantum links — not space-time — constitute the fundamental structure of the universe.
Two leading candidates for a “theory of everything,” long thought to be incompatible, may be two sides of the same coin.
The irreversibility of time may be a clue as to what makes up the universe’s dark matter.
If a theory can’t be tested, is it still science?
Nima Arkani-Hamed is championing a campaign to build the world’s largest particle collider, even as he pursues a new vision of the laws of nature.
Explore the deepest mysteries at the frontier of fundamental physics, and the most promising ideas put forth to solve them.
At super-low temperatures, a crystal called samarium hexaboride behaves in an unexplained, imagination-stretching way.
By replacing black holes with fuzzballs — dense, star-like objects from string theory — researchers think they can avoid some knotty paradoxes at the edge of physics.
Quantum theorist Christopher Fuchs explains how to solve the paradoxes of quantum mechanics. His price: physics gets personal.
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