Quote: Some 65 million years ago, a big rock -- a very big rock -- slammed into the southwest portion of the Yucatan Peninsula in Mexico, creating a 110- to 180-mile crater and triggering a biological catastrophe that wiped out more than half the Earth's species, including the dinosaurs.
In 2010, an international panel of scientists ruled out alternative explanations as they coalesced around the theory that the space rock impact was responsible for this cataclysmic event. However, they debated whether the crater was produced by a comet or an asteroid.
New research now points to a comet as the culprit.
Read more: http://news.cnet.com/8301-11386_3-575758...s-a-comet/
I question the general assumption that felines are inherently deficient in the area of grammar and sentence structure.