For all of his bravado, obnoxiousness, hatred, and vitriol, the scariest thing about Trump, to me, is his unique combination of ignorance about the world, convolved with ignorance about himself.

One thing I cannot understand - and people are probably going to be upset about this - is why local school boards have control over educational content.

Imagining living in a universe without purpose may prepare us to better face reality head on. I cannot see that this is such a bad thing.

On the question of preserving public lands, Trump replies that our elected officials have spent too long rewarding 'special interests,' by which I assume he doesn't mean petroleum companies and the Bundy family.

Donald Trump's candidacy has been a source of anxiety for many reasons, but one stands out: the ability of the president to launch nuclear weapons. When it comes to starting a nuclear war, the president has more freedom than he or she does in, say, ordering the use of torture.

I cannot stress often enough that what science is all about is not proving things to be true but proving them to be false.