Whenever life gets you down, Mrs. Brown And things seem hard or tough And people are stupid, obnoxious or daft And you feel that you've had quite enough….

Just remember that you're standing on a planet that's evolving And revolving at nine hundred miles an hour That's orbiting at nineteen miles a second, so it's reckoned, A sun that is the source of all our power The sun and you and me and all the stars that we can see Are moving at a million miles a day In an outer spiral arm, at forty thousand miles an hour Of the galaxy we call the 'Milky Way'

Our galaxy itself contains a hundred billion stars. It's a hundred thousand light years side to side It bulges in the middle, sixteen thousand light years thick But out by us, it's just three thousand light years wide We're thirty thousand light years from galactic central point We go 'round every two hundred million years And our galaxy is only one of millions of billions In this amazing and expanding universe

The universe itself keeps on expanding and expanding In all of the directions it can whizz As fast as it can go, at the speed of light, you know Twelve million miles a minute, and that's the fastest speed there is So remember, when you're feeling very small and insecure How amazingly unlikely is your birth And pray that there's intelligent life somewhere up in space 'Cause there's bugger-all down here on Earth!

The Galaxy Song - Monty Python