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.
In some ways, machine vision is superior to human vision. In other ways, it may never catch up.
Origin-of-life researchers have usually studied the potential of pure starting materials, but messy mixtures of chemicals may kick-start life more effectively.
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.