If a 10-mile-wide comet hits the earth, how will this likely affect the history of life?
1 Answer
May 2, 2016
Earth would still be intact, but a massive extinction event of life would occur. But, life would likely bounce back.
Explanation:
There have been a few mass extinction events in the geological past and at least one (end Cretaceous) was likely due to a 10 km asteroid or comet striking Earth. This caused the end of the dinosaurs (except birds there living ancestors), but it did mean that mammals and our ancestors, did survive and took over the world. Extinction events don't usually bring a complete end to life, but radically changes the course and direction of evolution on the Earth. Produces winners and losers.
