
Iran was nowhere close to a nuclear bomb, experts say
Although President Trump has claimed Iran was weeks away from developing a nuclear weapon, much more work was needed for the country to do so

Iran was nowhere close to a nuclear bomb, experts say
Although President Trump has claimed Iran was weeks away from developing a nuclear weapon, much more work was needed for the country to do so
The last great U.S. particle collider is no more. What comes next could be even better
After 25 years, Brookhaven National Laboratory’s Relativistic Heavy Ion Collider—the U.S.’s largest and only particle collider—has ceased operations, but its science lives on


Physicists trace particles back to the quantum vacuum
Scientists have found “strange quarks” that originated as virtual particles that sprang from nothing

China’s Giant Underground Neutrino Observatory Just Released Its First Results—And They’re Promising
Hidden beneath the hills of southern China, the JUNO observatory shows promise in solving neutrino mysteries

Scientists Measure the Temperature of the Universe Just after the Big Bang
Quark-gluon plasma, a bizarre state of matter that mimics the early cosmos, is the hottest thing ever made on Earth

Physicists Propose a Simpler, Hotter Origin for the Cosmos
Theorists have found that a “warm” version of cosmic inflation is consistent with known physics, linking it to the hunt for dark matter

What’s the Smallest Particle in the Universe?
The answer to this supposedly simple particle physics question isn’t so simple

U.S. Science and Scientific American Have Weathered Attacks Before and Won
Federal officials seized 3,000 copies of Scientific American in 1950 in a “red scare” era of attacks on science. The move backfired and offers lessons for today

Miniature Neutrino Detector Promises to Test the Laws of Physics
A relatively small detector caught neutrinos from a nuclear reactor using a technique known as coherent scattering

The U.S. Just Axed Its Boldest Cosmology Experiment in Generations
Researchers hoped CMB-S4, a $900-million cosmology experiment, would answer one of the greatest questions in physics. Instead it’s become another cautionary tale of pursuing big science amid shrinking budgets

Mysterious Antimatter Physics Discovered at the Large Hadron Collider
The LHCb experiment has observed a new difference between matter and antimatter in particles called baryons

Dark Matter ‘Droplets’ Could Solve Multiple Cosmic Mysteries
Inspired by superconductivity, a strange new theory that seeks to explain dark matter might explain dark energy, too