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Surprising oil drop experiments suggest that the quantum world may not be as strange as advertised.
A new theory explains the seemingly irreversible arrow of time while yielding insights into entropy, quantum computers, black holes, and the past-future divide.
A conversation with the mathematical physicist Freeman Dyson on quantum electrodynamics, climate change and his latest pet project.
Scientists report the possible discovery of primordial gravitational waves, ripples in space-time that carry a record of how the universe began.
New calculations suggest physicists may someday discover a fundamental theory of gravity, but it could require a radical new perspective on the universe.
Physicists have devised experiments that can probe the interface between quantum mechanics and general relativity.
Physicists have discovered a jewel-shaped geometric object that challenges the notion that space and time are fundamental constituents of nature.
Theoretical cosmologists are piecing together a cosmic origin story from a surprising anomaly in the recently released Planck satellite image.
Decades of confounding experiments have physicists considering a startling possibility: The universe might not make sense.