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-Revolves around the Sun every 225 Earth days, but its rotation takes 243 Earth days. One other interesting note is that Venus rotates clockwise, the only planet in our solar system to do so. -slow rotation minimizes seasonal temperature variation.-Venus has a thick atmosphere made up almost entirely of carbon dioxide.Most of the old mission ether for the atmosphere or a short-term mission for a little information. So, we need a long-term mission to get much data to work with. There are agencies that sent mission in form of rover to explore the atmosphere and a part of the land but with batteries that can last just for 2 hours in maximumFirst one: (combustion engines)