THE LAWS THAT GOVERN THE LIGHT FROM A FIREFLY in my backyard as I write these words tonight also govern the light emitted from an exploding star one billion light-years away. Place changes nothing. Nor does time. One set of fixed rules runs the game, in all times and places. That’s as big a truth as we Earthlings have discovered, or ever will, in our brief run.
But the place is big, I tried to tell my son. “You can’t imagine how big. Think of the most unlikely place…”
A planet made out of iron?
“For instance.”
Pure diamond?
“They exist.”
A planet where the oceans are hundreds of miles deep? A planet with four suns?
“Yes times two. And we’ll find even stranger places, between here and the universe’s edge.”
Okay. I’m thinking of my perfect planet. My one-in-a-million place.
“At one in a million, there are roughly ten million of them in the Milky Way alone.”