Humanity is in a back-and-forth relationship with nature. First, we thought we were at the center of everything, with the Sun and the entire cosmos rotating around our little planet. We eventually realized that wasn’t true. Over the centuries, we’ve found that though Earth and life might be rare, our Sun is pretty normal, our Solar System is relatively nondescript, and even our galaxy is one of the billions of spiral galaxies, a type that makes up 60 percent of the galaxies in the Universe.
