Asteroid shower? Let’s hope not! The Perseids are caused by dust blown off comet Swift-Tuttle. Although I don’t think a lower bound for “asteroids” has been defined, surely anything smaller than a centimeter in diameter should not be called an “asteroid”.
Asteroid shower? Let’s hope not! The Perseids are caused by dust blown off comet Swift-Tuttle. Although I don’t think a lower bound for “asteroids” has been defined, surely anything smaller than a centimeter in diameter should not be called an “asteroid”.