NASA's Opportunity rover sent its first pictures of Mars to Earth early on Sunday, delighting scientists just hours after the unmanned spacecraft successfully landed on the Red Planet.
NASA's Opportunity rover sent its first pictures of Mars to Earth early on Sunday, delighting scientists just hours after the unmanned spacecraft successfully landed on the Red Planet.
美国航空航宇局的探测车“机遇号”，周日一早把它在火星拍摄的首张照片发回地球，让科学家格外振奋。这张照片是“机遇号”降落火星，并在登陆四小时后传回的。