Earth has 365 days in a year, but actually rotates 366 ti... | funfact.wiki | funfact.wiki
Earth has 365 days in a year, but actually rotates 366 times. The extra rotation comes from its orbit around the Sun — an example of the coin rotation paradox.
In the 1982 SAT, only 3 of 300,000 students answered a circle rotation problem correctly. Even the test makers were wrong, and the correct answer was not among the choices. The key is the coin rotation paradox: a circle rolling around an equal circle makes 2 full turns, not 1.
The Moon's orbit doesn't spiral around Earth as most people imagine. Because the Earth-Moon distance is tiny compared to the Earth-Sun distance, the Moon's actual path through space is nearly circular, traveling alongside Earth around the Sun.
Earth's closest planet on average isn't Venus but Mercury. Bigger orbits spend longer on the far side of the Sun, so average distance grows. Mercury's tiny orbit keeps it near every planet. Earth–Mercury averages 1.04 AU, Earth–Venus 1.14 AU. The "Whirly Dirly Corollary."
Venus is the only planet in the Solar System where a day is longer than a year. It takes about 243 Earth days to spin once on its axis, but only 225 days to orbit the Sun. It also spins backward, so the Sun rises in the west and sets in the east.
There are more trees on Earth than stars in the Milky Way. A 2015 Nature study estimated about 3 trillion trees, while NASA counts 100 to 400 billion stars—over seven times more trees. The same study found Earth's trees have dropped about 46% since civilization began.