text: But studying vesue is pretty challageing and dangeus because being able to study tha planent you have to be on it and that diffcult because " a thick atmousephere of almost 97% carbon dixide blankets venus. even more challenging are the clouds of hihly corrosive sulfuric acid in venuis atmoahere." and "since no spacecraft suurvived the landing for more then a few hours. maybe this issue explans why not a single spaceship has tuoched down on venus in more than 3 decates."