Meteor Showers

Meteor showers occur annually or at regular intervals as Earth passes through the trail of dusty debris left by a comet and, in a few cases, asteroids.

关键词：Eta Aquarids, Geminids, Halley's Comet, Leonids, Lyrids, Meteor Showers, Meteors & Meteorites, Orionids, Perseids, Quadrantids, Skywatching, Southern Delta Aquariids, The Solar System