text: Also in paragrpah two it says that Venus and Earth are "twin". They say that planet Venus has the closest planet to Earth, but the density and size are some what close. It also say's that the speed of orbiting around the sun is close to Mars, and also Venus. Yet also Venus is very close to us that the humans have tried to send spacecraft to land on Venus numerous times. And yet each time was a fail since it only survived for a few hours.