The agency plans to send future spacecraft to areas once covered by water in the hope of finding signs of past life.

 
  • 宇航局計劃將來(lái)發(fā)送航空器到這些曾經(jīng)被水覆蓋的區域,希望能發(fā)現過(guò)去生命存在的跡象。
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