What's up in

Physics

Boucing droplet
quantum mechanics

Fluid Tests Hint at Concrete Quantum Reality

Surprising oil drop experiments suggest that the quantum world may not be as strange as advertised.

Physics

In a Grain, a Glimpse of the Cosmos

When scientists traced a museum rock back to its origins, they uncovered mysteries about the early solar system.

Efimov trimers.
Physics

Physicists Prove Surprising Rule of Threes

Three groups of experimentalists have independently observed a strange state of matter that forms from three particles of any type and at any scale, from practically infinitesimal to infinite.

quantum computing

Forging a Qubit to Rule Them All

A scientist at Bell Labs has started construction of a topological qubit, which could be the building block of a robust, scalable quantum computer.

Levitating superconductor.
condensed matter physics

Decoding the Secrets of Superconductivity

Experimentalists have pinpointed the microscopic structure of waves inside high-temperature superconductors, which could be the key to understanding the complex materials.

The arrow of time.
Physics

Time’s Arrow Traced to Quantum Source

A new theory explains the seemingly irreversible arrow of time while yielding insights into entropy, quantum computers, black holes, and the past-future divide.

neuroscience

A Fundamental Theory to Model the Mind

Support is growing for a decades-old physics idea suggesting that localized episodes of disordered brain activity help keep the overall system in healthy balance.

Q&A

A ‘Rebel’ Without a Ph.D.

A conversation with the mathematical physicist Freeman Dyson on quantum electrodynamics, climate change and his latest pet project.

Bicep2 B-modes
cosmology

Possible Echo of Big Bang Detected

Scientists report the possible discovery of primordial gravitational waves, ripples in space-time that carry a record of how the universe began.