This freaked me out when I thought about it too much… As we understand the universe, it all started with the Big Bang and the universe has been expanding ever since. Distant galaxies are moving away from us uniformly in ALL directions. This means we are at the centre of the universe… right?
Wrong… When the Big Bang occurred, it happened at EVERY point in the universe, which means that EVERY point in the universe is expanding including every atom in our bodies.
While you have been reading this, YOU have expanded.
(Wagon Wheels, however, are not subject to this expansion which explains why they were so much bigger when I was a nipper.)
That's enough of Hubble's Law for now, I'm off down the pub.