长久以来,人类一直推测火星可能存在某种生命形式。这些猜想在21世纪或许会得到证实或否定。因为一系列自动探测航天器即将开赴火星,用来探测火星土壤以弄清是否适于生命存在。预计随后发射的其他探测器的任务中有取回土壤样品的,有在火星上释放气球探测火星大气的,也有能够连续数年对火星地表进行实地勘查远程漫游的科考车辆。 For a long time, humans have been speculating that Mars may have some form of life. These conjectures may be confirmed or denied in the 21st century. Because a series of auto-detection spacecraft is about to go to Mars, it is used to detect the soil of Mars to find out whether it is suitable for the existence of life. It is expected that other missions of the subsequent launchers will retrieve soil samples, releasing balloons on Mars to probe the atmosphere of Mars, and exploratory vehicles that can carry out long-distance roaming on the Martian surface for several years.