Mars had an oxygen-rich atmosphere around 4 billion years ago
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Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
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There is a persistent storm in Venezuela that produces lightning 140 to 160 nights a year, 10 hours per day and up to 280 times per hour and has been going since at least the 16th century.
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An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
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The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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