Not only are we in the universe, the universe is in us. I don't know of any deeper spiritual feeling than what that brings upon me.

I've accomplished enough in life so that I do not fear death.

My popularity does not derive from me pandering to people. People came to me. I don't tell anyone to follow me on Twitter. I don't tell people to like my Facebook page. I don't tell people to fill the venue. I'm offered to people, and then people come.

If Neptune were analogized with a Chevy Impala in mass, then how big is pluto compared to that? Pluto would be a matchbox car sitting on the curb.

UFO (Unidentified Flying Object)sightings are not higher among amateur astronomers than they are in the general public. In fact, they're lower. You say, why is that so? Well, because we know what the hell we're looking at!

For your own safety, do not ever tell an astrophysicist, I hope all your stars are twinkling.

I love being wrong because that means in that instant, I learned something new that day.