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.

A Brief Note on the Myth of the Astrophysical Vacuum Cleaner

I've done some reporting on physics but have yet to write about my favorite science topic, gravity, here on the 'blog. Today, I want to tell you a little bit about something I know a fair bit about, black holes.

Black Holes and Extra Dimensions

Cool (and wacky) new story on using Sgr A*—the supermassive black hole at the center of our galaxy, rather than the one in that Muse song—and gravitational lensing to search for extra dimensions.

Fun fact: I did final edits on this story over the phone this morning while we were driving north on the Grapevine section of I-5.

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Physicists Create Black Hole 'Light' in Lab at ScienceNOW

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