The more you find out about the world, the more opportunities there are to laugh at it.

What happens to other species also happens to us.

From an evolutionary standpoint you can't just wipe everything out and start over, and I don't think you can do it in the school system either.

Anybody who grew up with the space program is a fan of science fiction.

SCIENCE is a part of EVERYONE'S everyday life.

If NASA is to reach beyond the Moon and someday reach Mars, it must be relieved of the burden of launching people and cargo to low earth orbit. To do that, we must invest more in commercial spaceflight.

The philosophy of science is inherent in the process. This is to say, you think critically, you draw a conclusion based on evidence, but we all pursue discovery based on our observations. That's where science starts.