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Features
How the Inside of a Black Hole Is Secretly on the Outside
Mysterious “islands” help to explain what happens to information that falls into a black hole
How Much Does 'Nothing' Weigh?
The Archimedes experiment will weigh the void of empty space to help solve a big cosmic puzzle
Quantum Physics Falls Apart without Imaginary Numbers
Imaginary numbers—the square roots of negative numbers—are an inescapable part of quantum theory, a study shows
Physicists Make Matter out of Light to Find Quantum Singularities
Experiments that imitate solid materials with light waves reveal the quantum basis of exotic physical effects
Black Hole Discovery Helps to Explain Quantum Nature of the Cosmos
New insights from black hole research may elucidate the cosmological event horizon
Engineered Metamaterials Can Trick Light and Sound into Mind-Bending Behavior
Advanced materials can modify waves, creating optical illusions and useful technologies
The Exquisite Precision of Time Crystals
Exotic new states of matter contain patterns that repeat like clockwork
Rule-Breaking Particles Pop Up in Experiments around the World
Several physics measurements suggest that novel particles and forces exist in the universe
Is Our Universe a Hologram? Physicists Debate Famous Idea on Its 25th Anniversary
The Ads/CFT duality conjecture suggests our universe is a hologram, enabling significant discoveries in the 25 years since it was first proposed