These are a few of my favorite sciences.

What's your favorite thing about the natural world? There are lots of things to choose from. The profound tension between natural selection and biological diversity. The fact that no matter how fast you're going, you'll never catch up with a beam of light. The way snowflakes form.

How Gravity Works

Some time ago, I promised an explanation of how gravity works — in particular, how general relativity, Einstein's theory of gravity, works. Today I'm going to deliver. This one's a little mind bending, so definitely ask questions if you're confused. I like questions. Questions are cool.

Physicists Create Black Hole 'Light' in Lab at ScienceNOW

ScienceNOW just posted a story I wrote on a really exciting experiment: