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The Earth is one of nine gigantic, round things which orbits around the sun. This things are planets: enormeus bulbs which are made from stone, metal or a gasses and orbit around a star. Some planets, like the Earth and Venus, are surrounded by a layer of gasses, which is called atmosphere. The largest planets, Jupiter and Saturn are surrounded by rings of gasses and dust. The temperatures changes from planet to planet: at Mercury, the planet closest to the sun in the afternoon it is hotter than an oven and at Pluto which is the most far-away-from-the-sun-planet, it is 10 times colder than a frost in the night at earth! The form of the orbit of all planets is elliptical. They move in the same direction and turn around when they move. Through a telescope the planets look like glowing round things, but in real, the light is a reflection of sunlight. As far as we know is the Earth the only planet in our solar system were life exists. But there are billions of other stars in the universe, and some could have their own planets.... (Click here for a picture)
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