People used to think comets were warnings of disasters. Today we know that they are icy visitors from the most distant regions of the Solar System. Other stars have exoplanets and they seem to have exocomets too.

Comets - Facts for Kids

It visits every 75 years or so, appearing like a celestial ghost in our skies. In the past it has been a bad omen and scary object, but last time it came it was a big event around the world. What is it? Halley's Comet, the most famous comet of all.

Halley's Comet for Kids

The Kuiper Belt begins around the orbit of Neptune. It's a wide belt of icy bodies, including small objects that are like icy asteroids, dwarf planets, and comets.

Where do comets come from? The Oort Cloud is home to a trillion comets at the edge of the Solar System, nearly half way to the next star. Sometimes they get kicked out and sometimes they come to visit the inner Solar System.

Oort Cloud - Facts for Kids