We are the first species to have taken our evolution into our own hands.

The way to find out about our place in the universe is by examining the universe and by examining ourselves - without preconceptions, with as unbiased a mind as we can muster.

If we long to believe that the stars rise and set for us, that we are the reason there is a Universe, does science do us a disservice in deflating our conceits?

The total number of stars in the Universe is larger than all the grains of sand on all the beaches of the planet Earth.

It is the tension between creativity and skepticism that has produced the stunning and unexpected findings of science.

He sought a way to preserve the past. John Hershel was one of the founders of a new form of time travel.... a means to capture light and memories. He actually coined a word for it... photography. When you think about it, photography is a form of time travel. This man is staring at us from across the centuries, a ghost preserved by light.

Better the hard truth, I say, than the comforting fantasy.