Our atmosphere???? Our atmosphere protect us from the cosmic rays what it consist of(the cosmic rays and the atmosphere)? How much is its power? How it (the atmosphere) stop these rays? What happened in high level of the atmosphere to stop it? What are the best gases (in the atmosphere) that stop the cosmic rays? Where should I look in the net to find sophisticated and deep information about this subject? again i post it in two plasese so i have more opinions thank you all !!!!!!!!!!!