Are We Going Extinct?
Scientists don’t agree on how many mass extinction events in earth’s history were triggered by a space rock crashing into the planet’s surface. However, most do agree that an asteroid collision 65 million years ago (among other things) was what brought an end to the age of dinosaurs. The outer planets Saturn and Jupiter protect us from many of these potential impacts, as was shown on July 20, when a huge scar appeared on Jupiter’s surface, evidence of a comet impact. However, this is not always the case, and12,600 years ago North America was struck by a massiveobject that ended the ice age and gave rise to flood legendsaround the world.
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