From The Meaning of Life, one of Monty Python's most brilliant creations is the "Galaxy" song, recounting all the mathematics and distances and speeds by which the Universe and all its parts move. Here's their full text:

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 lightyears thick,
But out by us it's just three thousand lightyears wide.

We're thirty thousand lightyears 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 whiz
As fast as it can go--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.