Physics experiments have changed the world irrevocably, altering our reality and enabling us to take gigantic leaps in technology. From ancient times to now, here's a look at some of the greatest ...

"Dark photon" theory says light's interference patterns may emerge from quantum particles, not waves, upending centuries of physics.

New research offers an intriguing variation on the famous experiment, which proved light behaves as both a particle and a wave. Reading time 2 minutes A team of physicists has recreated a classic ...

Physicists confirm that light has two identities that are impossible to see at once. (Nanowerk News) MIT physicists have performed an idealized version of one of the most famous experiments in quantum ...

Nearly a century after Albert Einstein and Niels Bohr turned a technical disagreement into a philosophical duel, a new ...

Scientists have taken a major step toward solving a long-standing mystery in particle physics, by finding no sign of the particle many hoped would explain it. Baryons, composite particles made up of ...

In this 2011 image, a NASA engineer looks on as the first six of the James Webb Space Telescope's 18 mirror segments are prepped to begin their final cryogenic testing. Engineers spent three decades ...

Researchers have finally resolved a century-old debate over the famous "double slit" experiment, according to new research.

Take, for instance, quantum entanglement, which says that the state of one particle can be determined by examining the state ...

Schematic of the MIT experiment: Two single atoms floating in a vacuum chamber are illuminated by a laser beam and act as the two slits. The interference of the scattered light is recorded with a ...