Venus is located closer to Earth than any other planet. Venus is also almost the same size as Earth. But Venus has no oxygen in its air, or water on its surface, like Earth does. Venus is wrapped in a layer of clouds. The clouds have a lot of sulfur in them. The surface makes Venus look yellow when we see the planet in the sky. The clouds keep the sun's heat from escaping. The trapped heat makes Venus so hot you could melt lead on the planet's surface!