The Milky Way has, at last count, about two hundred billion stars. Billions of them are G-type main sequence, the same as our sun. Which means they are stable, with long lives. Estimates about terrestrial worlds suggest they too are in substantial numbers. So there should be a lot of other intelligent beings. Which brings us to the Fermi Paradox. Enrico Fermi was an Italian-born physicist. He won the Nobel Prize in 1938 for his work with neutrons and radioactivity. He was one

It’s been an interesting week for aliens. First we have Oxford University citing research that suggests we are probably alone in the universe. We don’t like that idea. Usually when I’m doing a presentation, I invite questions. One that always shows up is whether I believe in UFO’s? My usual response is no. Bring one down onto my driveway, let me kick the tires, and I’ll let you know. The disappointment in the audience is clear. But I suspect FTL travel is not possible. If tha