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Which planet is closest to the Sun?
Mercury is the planet closest to the Sun. On average, it orbits at 36 million miles (58 million km) away. (Earth orbits about 58 million miles/93 million km away.) Mercury is not much bigger than the Moon, and it looks quite like the Moon too. The side of Mercury closest to the Sun gets blisteringly hot - more than 400° C. The next-closest planet to the Sun is Venus, followed by Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto.
Nine planets orbit the Sun. Mercury is the closest and Pluto the farthest away.
Nine planets orbit the Sun. Mercury is the closest and Pluto the farthest away.
 
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