CometsA Comet is a rock in space that is very icy and forms a coma and a tail.

Some comets originate from the Kuiper belt.

The Oort Cloud

Most comets come from the Oort Cloud, a region of space far beyond the Kuiper belt, which has billions of comets.

Comets: Coma’s and TailsA coma is the atmosphere of a comet & thetail is a formation of dust & gas behind it.

Coma

tail

Comets Tail FormationA tail forms due to the heat of the Sun evaporating frozen gases and releasing dust.

The tail always points away from the Sun because the Sun’s cosmic wind pushes it away.

Comet Tail Formation:The tail of a comet can only be seen when it gets close enough to the Sun for it to be heated up.

Video: What are Comets?