No one is dumb who is curious. The people who don't ask questions remain clueless throughout their lives.

Too many people view on [space exploration] as a luxury rather than as a fundamental driver to stimulate interest in science to everyone in the educational pipeline. It's vital to our prosperity and security.

I have thoughts every day that are themselves tweets.

If factual information upsets you, then you are creating a world that is not embracing objective truths, and that's not how you advance a democracy.

You don't need to be a scientist to know Earth's age or that life evolved. You just need be one who embraces objective truths

And extracting one molecule's signature in spectral analysis from the rest of the signatures is hard work, sort of like picking out the sound of your toddler's voice in a roomful of screaming children during playtime. It's hard, but you can do it.

You know that passage in the Bible that says, “And the meek shall inherit the Earth”? Always wondered if that was mistranslated. Perhaps it actually says, “And the geek shall inherit the Earth.