Asteroids Hit More Often Than We Think
The evidence is on the ocean floor – Asteroid impacts, like the one that did in the dinosaurs, are not as rare as we’d like to think they are. 70% of the earth is covered in water, so most asteroids land in the ocean. A researcher who searched for underwater impact craters and found an ominous number of them?several of them very recent, in geologic terms. And a huge meteorite found in Australia 40 years ago has been reanalyzed and now scientists think it may have brought life, in the form of bacteria, to this planet (Australia DOES have some of the world’s oldest?and most unique?life forms).
read more