" Describing Earth as a tiny dot in a photo from space, Ann Druyan and Carl Sagan wrote: The Earth is a very small stage in a vast cosmic arena...

It can be dizzying when you think about the size of the universe compared to yourself. Or the fact that everything that keeps you alive hangs in perfect balance, based on our planet’s position. Perhaps you look at the stars at night and feel like you are being sucked toward them. Like you are being consumed by the expanse around you. [That... See more