What's up in
Physics
complex systems
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.
condensed matter physics
Paradoxical Crystal Baffles Physicists
At super-low temperatures, a crystal called samarium hexaboride behaves in an unexplained, imagination-stretching way.
cosmology
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.
Physics
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.
Q&A
A Private View of Quantum Reality
Quantum theorist Christopher Fuchs explains how to solve the paradoxes of quantum mechanics. His price: physics gets personal.
Physics
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.
astrophysics
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.
The Quantum Fabric of Space-Time
Interactive: What Is Space?
Imagine the fabric of space-time peeled back layer by layer.
The Quantum Fabric of Space-Time
How Quantum Pairs Stitch Space-Time
New tools may reveal how quantum information builds the structure of space.