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The original was posted on /r/space by /u/coinfanking on 2024-08-12 19:27:21+00:00.

The findings come from a new analysis of data from Nasa’s Mars Insight Lander, which touched down on the planet back in 2018. The lander carried a seismometer, which recorded four years’ of vibrations - Mars quakes - from deep inside the Red Planet. Analysing those quakes - and exactly how the planet moves - revealed “seismic signals” of liquid water.

While there is water frozen at the Martian poles and evidence of vapour in the atmosphere, this is the first time liquid water has been found on the planet. The findings are published in the Proceedings of the National Academy of Sciences.