Snowball in the sky

ON the very edge of the Solar System comets can be found.

A comet has been described as looking a little like a huge "dirty snowball". Big comets can take thousands of years to complete their orbit around the sun. - Exploring Space, Brown Watson

Would you like to comment on this article?
Register (it's quick and free) or sign in now.

Speech Bubbles

Please read our Comment Policy before commenting.