Science is the best thing humans beings have ever come up with. And if it isn't, science will fix it.

Our goal in science is to discover universal laws of nature. That pursuit fills me with wonder.

Millennial voters are very concerned about climate change and will vote for candidates who are planning to address it. But the systems that are in place - people talk about gerrymandering and the money that's in politics, this is a real thing, a real effect - and it's hard for climate change-denying legislators to get voted out. But I predict it will happen.

Evolution is not something you can believe in or not believe in like do you believe in gravity.

Everyone, red state, blue state, everyone supports space exploration.

The world's going to change climatically. We just want to control the change. We want to have a high quality of life for billions of people as we pass through this era.

There really is no such thing as race.