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Alright, I had another one there, well we had Mercury, then after that Mars and possibly Venus. And it's actually Venus. Mars does have some characteristics much like Earth, I mean at one point it was thought to have water, that water may have supported life, but Venus is referred to as our sister planet and it's believed that for the first few hundred million years it likely had ocean. And those oceans may have supported some type of life, but at one point in Venus' history it had a catastrophic atmosphere runaway, greenhouse gases, lots of volcanic activities happening, and the planet just super-heated, oceans evaporated off, and what's left on Venus right now resembles nothing like what the planet used to be. It's also another rather strange planet as well, and we'll cover that in the next question here too. Do all planets orbit the Sun in the same way? So the next one is do all planets orbit the Sun in the same way?