Meteor shower
Videos
A meteor shower is a celestial event in which a number of meteors are observed to radiate, or originate, from one point in the night sky. These meteors are caused by streams of cosmic debris called me
Eta Aquariids meteor shower, with zodiacal light and planets marked and labeled
Diagram from 1872
Meteor shower on chart
Comet Encke's meteoroid trail is the diagonal red glow.
Comet
Videos
A comet is an icy, small Solar System body or interstellar object that warms and begins to release gases when passing close to the Sun, a process called outgassing. This produces an extended, gravitat
Comet Hale–Bopp after passing perihelion in April 1997
Structure of a comet
Nucleus of 103P/Hartley as imaged during a spacecraft flyby. The nucleus is about 2 km in length.
Comet 81P/Wild exhibits jets on light side and dark side, stark relief, and is dry.