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experimental physics

An illustration of gravity as particles
gravity

Physicists Find a Way to See the ‘Grin’ of Quantum Gravity

A recently proposed experiment would confirm that gravity is a quantum force.

520px illustration of bottle beam
nuclear physics

Neutron Lifetime Puzzle Deepens, but No Dark Matter Seen

Two methods of measuring the neutron’s longevity give different answers, creating uncertainty in cosmological models. But no one has a clue what the problem is.

Electron-neutrino candidate in Super Kamiokande
Abstractions blog

Neutrinos Suggest Solution to Mystery of Universe’s Existence

Updated results from a Japanese neutrino experiment continue to reveal an inconsistency in the way that matter and antimatter behave.

Particle trails
particle physics

How the Hidden Higgs Could Reveal Our Universe’s Dark Sector

The universe has not cooperated with physicists’ hopes. In desperation, many are looking for new ways to search for surprises at the Large Hadron Collider.

Janet Conrad
Thinking Places

Janet Conrad, Seeker of Neutrinos and Other Curiosities

The physicist and curios collector hopes to reveal the hidden structure lurking in the subatomic world.

Particle measurement GIF illustration
quantum mechanics

Experiment Reaffirms Quantum Weirdness

Physicists are closing the door on an intriguing loophole around the quantum phenomenon Einstein called “spooky action at a distance.”

Elena Aprile in her lab at Columbia University.
Q&A

In the Deep, a Drive to Find Dark Matter

Elena Aprile now leads the world’s most sensitive dark-matter search. But before she could build her first detector, she had to make herself out of titanium.

particle physics

Grand Unification Dream Kept at Bay

Physicists have failed to find disintegrating protons, throwing into limbo the beloved theory that the forces of nature were unified at the beginning of time.

Janet Conrad by Kayana Szymczak
Q&A

On a Hunt for a Ghost of a Particle

Janet Conrad has a plan to catch the sterile neutrino — an elusive particle, possibly glimpsed by a number of experiments, that would upend what we know about the subatomic world.