He invited people to sign a petition that demanded either strict control of, or a total ban on, dihydrogen monoxide.... Yes, 86 percent of the passersby voted to ban water (H2O) from the environment. Maybe that's what really happened to all the water on Mars.

The last person I ever want working for me is someone who says 'that's not in my job description.

To get an Emmy nomination for a show that was the first-ever science talk show on television to us was an affirmation that there is an appetite for this content in the mainstream public, not just the erudite public. So we're all completely thrilled by it.

The good thing about science is that it's true whether or not you believe in it.

That's the point, to get the people who wouldn't otherwise think to eavesdrop on a conversation that involves science.

Any astrophysicist does not feel small looking up at the universe; we feel large.

Seventy percent of Earth's surface is water and over 99 percent is uninhabited, so you would expect nearly all impactors to hit either the ocean or desolate regions on Earth's surface. So why do movie meteors have such good aim?