text: The author supports his idea that exploring venus is a challenge by stating that no person who has landed there has lasted more than a few hours. Which is proving why it is a challenge because it is dangerous . Although it is the closest planet from earth the passage states that "not a single spaceship has touched down on Venus in more than three decades". Venus is 800 degrees Fahrenheit and a thick atmosphere of almost 97 percent carbon dioxide blankets Venus. That can kill you at any moment because you can burn to death and you are breathing in bad air.