I have my own business original essay Mars is fairly active geologically, Banerdt says, predicting the mission will detect a few Mars quakes as well. Landing on a smooth, flat, and decidedly dull spot, he says, will let the mission bore into the planet without complications and ensure a safer landing. 必須 2000文字以内 [bbs:youtube:(Youtubeの動画ID)]と書くとYoutubeの動画が貼れます。(例:[bbs:youtube:OQThUAQ0UN0])