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experimental physics

Illustration for "Trouble Detected in Infamous Dark Matter Signal"
dark matter

Trouble Detected in Infamous Dark Matter Signal

Independent scientists have cast serious doubt on a claimed detection of dark matter.

Illustration for thermodynamics
Abstractions blog

Quantum Correlations Reverse Thermodynamic Arrow of Time

A recent experiment shows how quantum mechanics can make heat flow from a cold body to a hot one, an apparent (though not real) violation of the second law of thermodynamics.

An illustration of gravity as particles
quantum 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 physics

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.