Scientists have found the strongest evidence yet that liquid water is flowing on Mars today. NASA photos have revealed bright new deposits in two gullies on Mars that suggest liquid water coursed through these ditches sometime in the past seven years.
However some scientists think these fresh gullies could also have been cut by liquid carbon dioxide (CO2).
Usually whenever liquid water is found on Earth one will also find life. Does the same hold true on Mars?
It's a good enough reason to visit the planet....
Water flowed 'recently' on Mars
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