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

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

I think on some level, role models are overrated If you require a role model who looks just like you to be something you wanna be and you can't find one, is that a reason to not be what you wanna be? No!

The Venus transit is not a spectacle the way a total solar eclipse is a spectacle.

There's nothing a teacher likes better than ten minute videos. It's not the whole class, but it's not too short, it's enough to wrap a lesson plan around.

What I’m saying is, when different experiments give you the same result, it is no longer subject to your opinion. That’s the good thing about science: It’s true whether or not you believe in it. That’s why it works.

Imagination alone is not enough, because the reality of nature is far more wondrous than anything we can imagine