Molecular clock transitions tune out the noise in the hunt for new physics

Heavy polar molecules are some of the most sensitive tools physicists have for probing what lies beyond the Standard Model, the theory that describes the particles and forces we know about. But ...

Newly identified molecule could help regulate sleep

Sleep is known to be essential for survival, as it allows both humans and other animals to rest, while the brain consolidates ...

DNA from 457 koalas suggests the species nearly went extinct 100,000 years ago, before humans reached Australia

A major genetic study has found that koalas almost became extinct about 100,000 years ago because of major climate changes, ...

Seasonal gene switch locks fruit flies in winter mode

Researchers at Washington State University have discovered a molecular "winter lock" that keeps animals in a less active ...
PNAS

A Period1 inducer specifically advances circadian clock in mice

Edited by John B. Hogenesch, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH; received April 25, 2025; accepted December 1, 2025 by Editorial Board Member Amita Sehgal ...