Humanity improves a planetary defense. At least external threats from outer space. As long as they’re just dumb stones that follow the laws of physics. And a group of extraordinary humans proved it last week when the planetary defense community stepped in to accurately track and predict exactly where a relatively small meteor would land …
Fireflies’ synchronized light shows have fascinated observers for ages. Credit: Raphaël Sarfati, CC BY-ND Imagine an ancient forest in the fading light of a summer evening. As the last rays of the sun disappear below the horizon, a small flash catches your eye. You turn around, hold your breath; it flashes again, hovering 2 feet …
Imagine an ancient forest in the fading light of a summer evening. As the last rays of the sun disappear below the horizon, a small flash catches your eye. You turn around, hold your breath; it flashes again, hovering 2 feet above the leaf litter. From across the dark clearing, a fleeting response. Then another, …
