Cepheid variable star RS Puppis. Credit: NASA/HST.
It’s arguably one of the greatest questions in modern science. Where are they? Are we truly rare as an intelligent species, or does our brand of curiosity permeate the cosmos? We recently watched a fascinating presentation in the SETI Talks series by Tony Zee that brought up one interesting possibility, a mode of communication that might be staring us in the face right now. [Read more...]