A new measurement appears to have eliminated an anomaly that had captivated physicists for nearly a decade.
At stake are fundamental ideas about how black holes form — and a six-way bet.
New measurements could upend the standard theory of the cosmos that has reigned since the discovery of dark energy 21 years ago.
A new look at a ubiquitous phenomenon has uncovered unexpected fractal behavior that could give us clues about the early universe and the arrow of time.
Although Einstein’s theory of space-time seems more complicated than Newtonian physics, it greatly simplified the mathematical description of the universe.
Opinions differ about what recent measurements of a sound-trapping fluid reveal about light-trapping black holes.
A recent challenge to Stephen Hawking’s biggest idea — about how the universe might have come from nothing — has cosmologists choosing sides.
The sun radiates far more high-frequency light than expected, raising questions about unknown features of the sun’s magnetic field and the possibility of even more exotic physics.
In a world seemingly filled with chaos, physicists have discovered new forms of synchronization and are learning how to predict and control them.