text: We say that Earth and Venus are twins because Venus is the closest planet to Earth in terms of density and size. People might think that when we say twins they might think that everything is the say on Venus but nobody know how Venus looks like because everytime we send the spacecraft in only last for a few hours. Never enough hours or days to see everything we want to see and view. The speed of Venus "means orbit the sun at different speeds." This probably mean why not spaceship don't last for very long in Venus.