New Tetraquark Particle Sparks Doubts
The Large Hadron Collider particle accelerator failed to confirm the Tevatron accelerator’s discovery of a new arrangement of quarks
Stories by Clara Moskowitz
Physicists May Have Discovered a New "Tetraquark" Particle
Data from the DZero experiment shows evidence of a particle containing four different types of quarks
Quantum Cuteness: Neutron Beta Decay
This toy is radioactively cute—and able to explain how a neutral-faced neutron turns into a proton with a positive expression.
Last Call: Will WIMPs Show Their Faces in the Latest Dark Matter Experiment
The most sensitive detector yet revs up in March—and there’s a lot on the line
Book Review: Home
Recommendations from Scientific American
"Einstein Would Be Beaming"--Scientists React to Gravitational Waves Discovery
Physicists at gatherings around the world exulted at the news that a long-sought prediction of general relativity had finally been found
Gravitational Waves Discovered from Colliding Black Holes
The LIGO experiment has confirmed Albert Einstein’s prediction of ripples in spacetime and promises to open a new era of astrophysics
Book Review: The Last Volcano
Recommendations from Scientific American
![Strange, Dense Matter: The Power of Neutron Stars [Video]](https://static.scientificamerican.com/sciam/cache/file/BE685A3E-A1E8-4282-89C767EB7E300AA0_agenda.png?w=275&h=154&fit=crop)
Strange, Dense Matter: The Power of Neutron Stars [Video]
A live Webcast Wednesday evening will discuss the latest science of neutron stars—some of the densest and weirdest objects in space
Book Review: Contact Sport
Recommendations from Scientific American
Book Review: Tunnel Visions
Recommendations from Scientific American
Not All Gravitational Waves Are Created Equal
The LIGO experiment hunts for gravitational waves that are different from those sought by BICEP2. Although both types are elusive, they differ in age and strength—and come from very different places...
Scientists Pick the Most Beautiful Equations
Mathematicians often see more than cold logic in symbols and numbers. They see the sublime
Book Review: A Brief History of Creation
Recommendations from Scientific American
Astronomers Struggle to Translate Anger into Action on Sexual Harassment
Scientists discuss the plight of women and minorities in the wake of a scandal over harassment by a prominent researcher
Book Review: Political Animals
Recommendations from Scientific American
Book Review: Light
Recommendations from Scientific American
Book Review: The Astronomer and the Witch
Recommendations from Scientific American
Potential New Particle Shows Up at the LHC, Thrilling and Confounding Physicists
The gigantic accelerator in Europe has produced hints of an exotic particle that defies the known laws of physics
The Hunt for Alien Molecules
Astrochemists are discovering many compounds in the cosmos that cannot exist on Earth
