Archivo: Quanta

Maintaining perfect stability through negative feedback is a basic element of electrical circuitry, but it’s been a mystery how cells could do it — until now.

A giant star’s death throes may offer the first evidence of a pair-instability supernova, and a glimpse of the first stars in the universe.

A new measurement appears to have eliminated an anomaly that had captivated physicists for nearly a decade.

Craig Callender worries that the analogy between black holes and thermodynamics has been stretched too far.

Modern humans and more ancient hominins interbred many times throughout Eurasia and Africa, and the genetic flow went both ways.

The twisting loops of the sun’s magnetic field control the flow of charged particles throughout the solar system. For the first time, researchers have created a scale model of this mysterious environment.

Three experiments have vetted quantum Darwinism, a theory that explains how quantum possibilities can give rise to objective, classical reality.

The discovery that apparently dead cells can sometimes resurrect themselves has researchers exploring how far they can push the point of no return.

Consciousness is a famously hard problem, so Hod Lipson is starting from the basics: with self-aware robots that can help us understand how we think.

Randomness would seem to make a mathematical statement harder to prove. In fact, it often does the opposite.