The first use of a novel method of analyzing Mars' gravitational force supports the idea that the planet once had an extensive northern ocean. In doing so, the method defines the scope of what scientists refer to as the northern Martian paleo-ocean in more detail. The work was published in July in the journal Icarus , which is affiliated with the American Astronomical Society's Division for Planetary Sciences. The research was led by Jaroslav Klokočník, professor emeritus at the Astronomical Institute of the Czech Academy of Sciences.

https://www.miragenews.com/mars-gravity-study-enhances-knowledge-of-1088581/

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