Never presume that just because you disagree with an idea that you must be correct.

I bought it, I read it, and I heeded its advice. I remain unabducted.

Why can't Pluto be a planet? Some people like Pluto. And if it doesn't exist then they don't have a favorite planet. Right? Please write back but not in cursive because I can't read cursive.

A successful day for me is when I teach people something. They become enlightened by an idea and learn how to think about it, so that later on when someone says, "Tell me about x, y, z," they don't have to say, "I know this because Tyson told me." No, they'll say, "Here's why it's true because I know and understand it."

For decades, we've been trying to cook up the building blocks of life, in the lab, and recreate the origins of it all, but the parts didn't seem to fit together, until now.

No doubt, the most challenging class of questions in science is the origin of things.

Wow, monitor lizards are pretty gnarly creatures. I want to go with the monitor lizard. That's just weird enough to be true. No?