text: Numerous dangers have been listed on the exploration of Venus. The author mentions that no spacecraft has survived on Venus: "...no spacecraft survived the landing for more than a few hours" (The Challenge 2). Since these missions have been unmanned, there is not much loss except for the spacecraft itself, but if there had been a human aboard, the loss would be tremendous and nothing would be gained from the mission. The conditions of Venus simply will not allow manned missions for closer examination of the planet. The author goes on to list the physical dangers of Venus: "On the planets surface, temperatures average over 800 degrees Fahrenheit, and the atmospheric pressure is 90 times greater than what we experience on our own planet" (The Challenge 3). On Venus, the temperature alone could liquify many metals and completely destroy spacecrafts that were sent there. Also, the pressure of the atmosphere could crush a submarine fit for diving to the deepest parts of the ocean. The dangers of Venus outweigh the knowledge to be gained from the exploration.