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Famous Fluid Equations Are Incomplete
A 115-year effort to bridge the particle and fluid descriptions of nature has led mathematicians to an unexpected answer.
The New Laws of Explosive Networks
Researchers are uncovering the hidden laws that reveal how the Internet grows, how viruses spread, and how financial bubbles burst.
Paradoxical Crystal Baffles Physicists
At super-low temperatures, a crystal called samarium hexaboride behaves in an unexplained, imagination-stretching way.
Why the Big Bang’s Light May Have a Tilt
Scientists haven’t tested the Big Bang’s light for a revealing shift in 25 years. A new experiment aims to change that.
The Fuzzball Fix for a Black Hole Paradox
By replacing black holes with fuzzballs — dense, star-like objects from string theory — researchers think they can avoid some knotty paradoxes at the edge of physics.
A Private View of Quantum Reality
Quantum theorist Christopher Fuchs explains how to solve the paradoxes of quantum mechanics. His price: physics gets personal.
A New Theory to Explain the Higgs Mass
Three physicists have proposed a new solution to one of the deepest mysteries in particle physics: why the Higgs boson has such a tiny mass.
The Particle That Broke a Cosmic Speed Limit
Physicists are beginning to unravel the mysteries of ultrahigh-energy cosmic rays, particles accelerated by the most powerful forces in the universe.
Interactive: What Is Space?
Imagine the fabric of space-time peeled back layer by layer.