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2 huge asteroid strikes 36 million years ago didn't change Earth's climate over the long haul, study finds
Two enormous asteroids that struck Earth about 36 million years ago did not cause any long-lasting ... that Earth's climate did not swerve in the 150,000 years following the asteroid strikes ...
Was the emergence of intelligent life on Earth just a fluke? Some scientists think not
Roughly 300,000 years ago, our species first appeared on the African landscape before spreading globally and coming to ...