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Showing posts from December 17, 2021

Venus, Mercury and Mars

Pic: Wikipedia The Venus Along with Earth and Mars, Venus and Mercury make up the inner planets. These planets all have an atmosphere, but each is very different. Mercury orbits the Sun at a distance of 46-70 million kilometres, while Venus has an average distance from the Sun of 108 million kilometres. Why is Venus called the evening star? Venus reflects sunlight so well that it shines like a star. Because it is quite close to the Sun, we can see it in the evening, just after the Sun sets. We can also see it just before sunrise. 'Venus is the second brightest object in the night sky, after the Moon.' What are the inner planets made of? Each of the inner planets is formed a little bit like an egg with a hard 'shell' or crust of rock, a white or mantle of soft, semi-molten rock, and a yolk or core of hot, often molten, iron and nickel. What is the atmosphere like on Venus? Venus' atmosphere would be deadly for humans. It is very deep, so the pressure on the ground is