But here 's the catch : NASA announced on Tuesday that ancient oceans may have supported living microbes . Jim Bell : This is quite literally a watershed moment in the history of solar system exploration . He says it is the first time that we ' ve discovered evidence for fresh water on another planet . Bell : Curiosity rover is not finished with its mission ; it may discover even more interesting things .
NASA announced on Tuesday that ancient oceans may have supported living microbes . Jim Bell : This is quite literally a watershed moment in the history of solar system exploration . He says it is the first time that we ' ve discovered evidence for fresh water on another planet . Bell : Curiosity rover is not finished with its mission ; it may discover even more interesting things .