IceCube finds the “Holy Grail”

Just back from a fantastic week in Alexandria, Virginia, celebrating the announcement of their huge new discovery with my IceCube friends. They’ve found the first “neutrino star” — although it isn’t a star exactly; it’s a galaxy (a blazar to be precise) about half-way between here and the edge of the visible universe.

Amazingly, although I finished my book just before this drama began to unfold, Francis Halzen, who’s been the guiding spirit of this project for almost thirty years, actually predicts just such a discovery in the very last paragraph of the book. His “criminal optimism” can make him creepily clairvoyant sometimes.

Here’s my article┬áin Scientific American.
(The three papers mentioned in the article are here, here, and here.)

It was quite a week. We’ve all got to get some rest …