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Is Mercury the hottest planet?________ Venus is the second planet from the sun. It is the hottest planet in which trap heat from the Sun. Its thick atmosphere is mostly carbon dioxide. Venus is slightly smaller than the Earth. It has no moons. Venus is known as the "morning star" since it is visible and quite bright at dawn or dusk(this is because Venus is closer to the Sun How many moons does Venus have?_________ Earth is the third planet from the Sun, the densest planet in moon. The Earth orbits , on average, 93 million miles from Mars is called the red planet. It is the 4th planet from the sun and the most Earth-like planet in our Solar System. It and a very thin atmosphere(95% carbon dioxide). The composed of frozen water and carbon dioxide. Olympus Phobes and Deimos. made mostly of ice chunks(and some rock) that range in size from the size of a fingernail to the size of a car. Saturn is made mostly with clouds and is encircled by a belt of 11 rings and 22 known moons. Uranus' blue color is rotational axis is strongly tilted on it's side(97.9 ). Instead of rotating with it's axis roughly around the Sun(this is a few degrees more than the Earth). This gives