text: Water and robots on Mars chosen as tops in 2004 by  #39;Science #39; The conclusive discovery by a pair of wheeled robots that Mars once had vast pools of water and possibly could have harbored life was chosen by the editors of 
inputs: Water and robots on Mars chosen as tops in 2004 by  #39;Science #39; The conclusive discovery by a pair of wheeled robots that Mars once had vast pools of water and possibly could have harbored life was chosen by the editors of 