Meeting With ‘Oumuamua

Observations from ESO’s Very Large Telescope in Chile and other observatories around the world show that this unique object was traveling through space for millions of years before its chance encounter with our star system. It appears to be a dark, reddish, highly-elongated rocky or high-metal-content object. – European Southern Observatory, Nov. 20, 2017  Science […]

Picking Your Brains

Dear LWON readers, I’d like to ask you a question. Twice recently I’ve written about properties of black holes that blow my mind. In each instance, my inspiration was a detail from a movie. First was Interstellar. The great gravitational grip of the black hole in that movie, as is the case for all black holes, distorts […]


In the 1992 documentary A Brief History of Time, Stephen Hawking describes what we would see if we were observing an astronaut nearing a black hole’s event horizon—the barrier beyond which gravitation is so great that not even light can escape. He invites us to imagine that the astronaut is wearing a watch, and that […]

Hiding in Plain Out-of-Sight

If you haven’t seen the movie Interstellar, you might not recognize the image above. It’s the black hole that figures prominently in the climax. But even if you have seen the movie, chances are excellent you still don’t know what you’re looking at. I didn’t, anyway, at least the first few days I spent staring at […]