Astronomers do not commonly use Venereal, in favor of the less contagious-sounding Venutian. Blame the medical community, who snatched the word long before astronomers had any good use for it. I suppose you can't blame the doctors. Venus is the goddess of beauty and love, so she ought to be the goddess of its medical consequences.

The greatest teachers are the ones that turn a B student into an A student, or a failing student into a B student.

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

I have thoughts every day that are themselves tweets.

If we're going to affect policy, or affect attitudes, for me, the adults have always been the target population.

If you are that person, you are more likely to believe that God cured you, this invisible force, creator of the universe, cured you, than that you had three idiotic doctors diagnose you. ... I taught physics to pre-med students who became doctors. Not all of them are smart, I assure you.

Plenty of people get excited about the universe.