text: There are many planets in our galaxy however Venus seems to proportionally the same as planet Earth. According to "The Challenge of Exploring Venus", "Venus is the closest planet to Earth in terms of density and size, and occasionally the closest in distance too" (paragraph 2). This quote exemplifies that Venus is very similar to Earth relating to size. Venus is very dangerous however, that does not stop human beings from wanting to explore the planet. Scientists are also interested in Venus from the close resemblance of Earth. According to the article, "Astronomers are fascinated by Venus because it may well once have been the most Earth-like planet in our solar system" (paragraph 4). On Venus, there is evidence of rocky sediments as well as features such as valleys, mountains, and craters. This suggests that Venus was once a planet just like Earth until something happened to destroy the chances of being able to inhabit that area.