Venus is sometimes known as Earth's twin sister. Its atmosphere is far more thicker than Earth's. There is still much unknown about this planet. You would weigh 7 lbs less on Venus than you would on Earth. At first Venus and Earth were almost identical. As the years went on, the differences started to show. Venus is the 2nd planet in the solar system. Most people think that all of Venus's water has evaporated into the atmosphere. Venus is also the brightest planet in the solar system. It takes Venus 262 days to orbit the sun. Venus has no moons at all. This planet is covered by sulfuric acid and water vapor. The temperature on Venus is about 860 in farenheit and that's why it's the hottest planet in the solar system.