Countless women are alive today because of ideas stimulated by a design flaw in the Hubble Space Telescope.

The word smart is not applied to all professions, even if you are smart in that profession. No one talks about smart lawyers. They may say a brilliant lawyer. They'll talk about a creative artist. Smart is saved for scientists. It just is. It's not even really applied to medical doctors. It applies to scientists in the lab figuring out what hadn't been figured out before.

In physics, opinions don't matter, only demonstrated experiments. The day the fellow succeeds, if ever, he won't need anybody else's opinion.

Space enthusiasts are the most susceptible demographic to delusion that I have ever seen.

One thing in life is for certain, the more profoundly baffled you have been in your life, the more open your mind becomes to new ideas.

It would be amazing if something completely spiritual sounding happened. Oh, my gosh! We'd be all over it. Because it's something new about the physical universe.

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?