New Mars gravity analysis improves understanding of possible ancient ocean

"In an area of northern Africa, for example, this gravity approach found a shoreline of a long-ago lake, and its finding was consistent with theThe authors write that analyzing the gravity aspects of Mars to better understand the planet improves upon prior approaches. They note that it can"provide complete information with a better insight of the celestial body, applicable in geology, geophysics, hydrology, glaciology and other disciplines.

The work by Kletetschka and colleagues differs from the traditional approach of mapping a surface based on gravity anomalies alone. Gravity anomalies are areas of greater or weaker gravitational force exerted by a planetary body's surface features. A mountain would exert a greater gravitational force because it has a higher concentration of mass than would be expected on a planet without surface features. Ocean basins and trenches would have less gravitational force.

In their Mars research, the authors used a process developed by Klokočník that analyzes gravity aspects calculated from gravity anomaly measurements. Gravity aspects are mathematical products that characterize the gravity anomalies.

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