A comet is an icy small Solar System body that, when passing close to the Sun,
heats up and begins to outgas, displaying a visible atmosphere or coma, and ...
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.
Explains what is inside a comet, how it moves, and the two most famous 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 ...
A comet's nucleus, or heart, is the solid chunk of something in the center of its
fuzzy coma. As it approaches the Sun, some of its surface boils off and creates a
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.
Tells where comets come from, and a few pictures too.
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
Comets are small, fragile, irregularly shaped bodies composed of a mixture of
non-volatile grains and frozen gases. They usually follow highly elongated paths