Comets are small Solar System bodies composed of ice and dust. They have thin, temporary atmospheres called comas and tails made of dust and gas.
A comet is an icy small Solar System body that, when passing close to the Sun,
warms and begins to evolve gasses, a process called outgassing. This produces
Comets are often referred to as "dirty snowballs." They are left over from the
formation of stars and planets billions of years ago. Before zipping around the
Comets are basically dusty snowballs which orbit the Sun. They are made of ices,
such as water, carbon dioxide, ammonia and methane, mixed with dust.
Nov 15, 2014 ... Learn about the composition and orbit of comets, as well as the history of their
discovery, famous comets and space missions to analyze them.
What is a comet? A comet is basically a big ball of ice and rock. Where do they
come from? They are leftovers from the beginning of the solar system. Why dose
Sep 26, 1996 ... What's A Comet? A comet is a small body in our solar system that orbits the Sun
much as do the Earth and the planets, except that comets ...
Jul 15, 2014 ... Comet ISON was discovered by two amateur astronomers in 2012. Despite high
anticipation, it fizzled and broke apart while making its first ...
Comets are small, fragile, irregularly shaped bodies composed of a mixture of
non-volatile grains and frozen gases. They usually follow highly elongated paths
Tells where comets come from, and a few pictures too.