Have you got any qualifications? help with physics homework Researchers using an unusually sensitive gas detector aboard the Mars Curiosity robot rover reported in Science Thursday that they can't find any methane in the thin Martian air, dealing a blow to hopes that life today might be lurking in the soil of the cold, arid world. 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])