text: Secondly the author say what are the reputation of Venus ,Venu's reputation as a challenging planet for human to study because the atmosphere of almost 97 percent carbon dioxide and the apacecraft survived the landing for more than a few houres also the clouds of higly corrosive sulfuric acid in venu's atmosphere , the plane's furface temperatures average over 800 degrees and the atmospheric pressure is 90 times grater than what we experince on our own planet and Venus has the hottest surface temperature of any other planet in our solar system,these conditions are far more extreme than anything humans encounter on Earth