A supernova 6 million years ago may have blasted Earth with radiation, triggering DNA mutations and accelerating evolution.
"An asteroid this size impacts Earth on average every few thousand years ... there was a possibility it could hit over the eastern Pacific Ocean, northern South America, the Atlantic Ocean ...
NASA is tracking a house-sized asteroid set to whiz past Earth tomorrow at a thundering 29,304 miles per hour. The space rock—named "2025 DJ22"—is estimated by NASA's Jet Propulsion Laboratory to be ...
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