CmdrTaco 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."
Never tell people how to do things. Tell them WHAT to do and they will
surprise you with their ingenuity.
-- Gen. George S. Patton, Jr.