We can relax about asteroid doomsday

Earlier today, I (and I’m sure thousands of others) blogged about a German teen who appeared to have shown that, rather than Earth facing a 1-in-45,000 collision chance from the Apophis asteroid, the odds instead were 1-in-450. But, that’s wrong, NASA now says. It stands by its initial calculations; also, the European Space Agency now says it never checked and signed off on Nico Marquardt’s calculations, either, contrary to German tabloid press reports.