Twenty years ago, astronomers peering at the young star Beta Pictoris got their first glimpse of a disk of dusty debris—the sign that planets, asteroids, and comets are forming and then banging together and releasing an abundance of dust.
Twenty years ago, astronomers peering at the young star Beta Pictoris got their first glimpse of a disk of dusty debris—the sign that planets, asteroids, and comets are forming and then banging together and releasing an abundance of dust.