The amazing Pathfinder mission that went in '97, and the MER Rover missions that are on Mars as we speak now and the European Space Agency's Mars Express, has taught us a number of amazing things.
令人惊喜的97年开拓者任务 以及火星探索任务 该任务在此时还在火星进行着 还有欧洲空间局的火星快车号 带给我们许许多多惊奇的发现