Scattered around the sites of ancient Mesopotamia are thousands of devices called cylinder seals. They are equal parts stamp, credit card, and jewelry. They were how people signed for things and proved who they were in the days before paper. It’s a fascinating relic of a time long past...
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When the Spanish Conquistadors encountered the mighty Inca empire, they found thousands of knotted-up ropes called quipus. Encoded in these quipus were tax records, census data, and the entire history of the Inca empire. But the secret to these ancient computers have been lost to time...
Rings around planetary bodies is surprisingly common. So why doesn’t the Earth have rings? Today we take a look at how rings form, what kind of rings Earth could have, how they would have shaped humanity, and why many scientists believe once upon a time, we did.TRANSCRIPT:Astronomers have...
In today’s Lightning Round video, we look at the upcoming Nancy Grace Roman Telescope, which is predicted to find rogue planets through a process called “microlensing.” It’s predicted that the universe is teeming with rogue planets, which are planets that don’t orbit around a star...
In 2001, the city of Kerala, India experienced a freak storm event. Granted, storms are nothing unusual in India but this storm was unique because the rain was red. Blood red. The theories around this included everything from desert sand, to rust, to literal alien biology. But the truth...