A Puzzling Quantum Scenario Appears to Violate a Law of Physics
By resolving a paradox about light in a box, researchers hope to clarify the concept of energy in quantum theory.
Symmetries Reveal Clues About the Holographic Universe
How might our universe emerge like a hologram out of a two-dimensional sheet? An infinitely distant “celestial sphere” could hold answers.
Gravitational Waves Should Permanently Distort Spacetime
Physicists have linked the “gravitational memory effect” to fundamental cosmic symmetries and a potential solution to the black hole information paradox.