Math Reveals the Secrets of Cells’ Feedback Circuitry
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.
Long-Lived Stellar Blast Kindles Hope of a Supernova We’ve Never Seen Before
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.
Physicists Finally Nail the Proton’s Size, and Hope Dies
A new measurement appears to have eliminated an anomaly that had captivated physicists for nearly a decade.
Are We All Wrong About Black Holes?
Craig Callender worries that the analogy between black holes and thermodynamics has been stretched too far.
Fossil DNA Reveals New Twists in Modern Human Origins
Modern humans and more ancient hominins interbred many times throughout Eurasia and Africa, and the genetic flow went both ways.
Sun’s Puzzling Plasma Recreated in a Laboratory
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.
Quantum Darwinism, an Idea to Explain Objective Reality, Passes First Tests
Three experiments have vetted quantum Darwinism, a theory that explains how quantum possibilities can give rise to objective, classical reality.
Cellular Life, Death and Everything in Between
The discovery that apparently dead cells can sometimes resurrect themselves has researchers exploring how far they can push the point of no return.
Curious About Consciousness? Ask the Self-Aware Machines
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.