from the summon-bruce-willis dept.
An anonymous reader writes "Comets could be the most significant impact hazard to Earth, with sky surveys underestimating the number that are potentially devastating by a factor of between 10 and 100, UK astrophysicists say."
e-credibility: the non-guaranteeable likelihood that the electronic data
you're seeing is genuine rather than somebody's made-up crap.
- Karl Lehenbauer