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Two Experiments Show Fourth Spatial Dimension Effect

To the best of our knowledge, we humans can only experience this world in three spatial dimensions (plus one time dimension): up and down, left and right, and forward and backward. But in two physics labs, scientists have found a way to represent a fourth spatial dimension.

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Edward Witten Ponders the Nature of Reality

Edward Witten reflects on the meaning of dualities in physics and math, emergent space-time, and the pursuit of a complete description of nature.

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Physicists are Using Lasers to Test Quantum Gravity Theories

An international collaboration of physicists has developed a lower-energy, laser-based system for testing quantum gravity theories.

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Newfound Wormhole Allows Information to Escape Black Holes | Quanta Magazine

Physicists theorize that a new “traversable” kind of wormhole could resolve a baffling paradox and rescue information that falls into black holes.

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What Sonic Black Holes Say About Real Ones | Quanta Magazine

Can a fluid analogue of a black hole point physicists toward the theory of quantum gravity, or is it a red herring?