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Katherine Freese

In Search of Dark Stars

Katherine Freese, a physicist who will soon lead the Nordic Institute for Theoretical Physics, reflects on the hunt for dark matter and how dark matter heating may have produced the first stars.


The New Science of Evolutionary Forecasting

Newly discovered patterns in evolution may help scientists make accurate short-term predictions.

David Spergel

A Bold Critic of the Big Bang’s ‘Smoking Gun’

The cosmologist David Spergel explains why a widely publicized gravitational-wave discovery could be wrong, and how the “overreaching” study could affect the public’s perception of science.


Early-Universe Explorer Looks for Answers

Chao-Lin Kuo, who helped design the experiment that claimed to have found evidence of gravitational waves from the Big Bang, isn’t bothered by criticism that cosmic dust may account for his results.

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.


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.

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.