“The immense distances to the stars and the galaxies mean that we see everything in space in the past, some as they were before the Earth came to be. Telescopes are time machines.”

“In this way, Edwin Hubble worked out the distances to nine different galaxies. We now know that our galaxy is only one of some hundred thousand million that can be seen using modern telescopes, each galaxy itself containing some hundred thousand million stars.”

“Our sun is one of a 100 billion stars in our galaxy. Our galaxy is one of billions of galaxies populating the universe. It would be the height of presumption to think that we are the only living thing in that enormous immensity.”

“I know a lot of things, Mathilda. I have gazed through space telescopes into the heart of the galaxy. I have seen a dawn of four hundred billion suns. It all means nothing without life. You and I are special, Mathilda. We are alive.”

“Looking at the stars is a glimpse of history. Some of the things we see are millions of light-years away. Everything in the universe has a past but stars don't try to hide it. They just keep shinning, for everyone to see.”

“Staring at the stars was like staring backward in time, since some stars are so far away that their light takes millions of years just to reach us. That we see stars not as they look now, but as they were when dinosaurs roamed the earth. The whole concept just struck me as…amazing somehow.”