Can humans see the Great Wall of China from space?
Many people think that the Great Wall of China is the only man-made object that can be seen from space. This is actually a myth – unless you’re in low orbit “under a specific set of weather and lighting conditions,” according to Scientific American. Unfortunately, the Great Wall’s composition of clay and stone simply blends in too much with the surrounding landscape for anyone to make it out with an unaided eye from orbit.
Interestingly, the Great Wall of China is also listed among the 48 most overrated tourist attractions in the world.
Is Pluto a planet?
It’s understandable why many people get this science trivia question wrong. Pluto used to be identified as a planet in our solar system, but it is now classified as a dwarf planet.
Next, check out these 15 scientific mysteries that boffins still can’t figure out.
This article first appeared on RD.com
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