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, 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