text: The challenge of exploring venus is the bad conditions of weather and how it is nothing like our planet and right now at the time , it is not possible to survive in those conditions . Venus is the closing thing to our earth in apperance atleast in our solar system , and if scientist get infomation from landing despite the conditions , we might one day figure out a way to habit the planet in the future .      On May 24, 2001, Mars was the topic of conversation with those at NASA and other space stations who were included on the Viking 1 and Viking 2 space mission. On that day, the Viking 1 spacecraft was circling Mars. On the other hand, its sister ship, Viking 2, spotted a shadowy likeness of a human face. According to Jim Garvin, chief scientist for NASA's Mars Exploration Program, the face on Mars resembles Middle Butte in the Snake River Plain of Idaho. But one argument leaves many citizens guessing: Is the face on Mars a true natural landform?