Venus

The second planet from the Sun in the Solar System. Its thick carbon dioxide atmosphere traps heat, giving a surface temperature of about 460°C, the hottest of any planet.

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.

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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."

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