SA Special Editions

Exotic new states of matter contain patterns that repeat like clockwork

Mysterious “islands” help to explain what happens to information that falls into a black hole

New insights from black hole research may elucidate the cosmological event horizon

Advanced materials can modify waves, creating optical illusions and useful technologies

Experiments that imitate solid materials with light waves reveal the quantum basis of exotic physical effects

The AdS/CFT duality conjecture suggests our universe is a hologram, enabling significant discoveries in the 25 years since it was first proposed

Imaginary numbers—the square roots of negative numbers—are an inescapable part of quantum theory, a study shows

The Archimedes experiment will weigh the void of empty space to help solve a big cosmic puzzle

Several physics measurements suggest that novel particles and forces exist in the universe