<P> The gravity of Mars is a natural phenomenon by which all things with mass around Mars are brought towards it . It is weaker than Earth 's gravity owing to the planet 's smaller mass . The average gravitational acceleration on Mars is 3.72076 ms ( about 38 % of that of Earth ) and it varies laterally . In general , topography - controlled isostasy drives the short wavelength free - air gravity anomalies . At the same time , convective flow and finite strength of the mantle lead to long - wavelength planetary - scale free - air gravity anomalies over the entire planet . Variation in crustal thickness , magmatic and volcanic activities , impact - induced Moho - uplift , seasonal variation of polar ice caps , atmospheric mass variation and variation of porosity of the crust could also correlate to the lateral variations . Over the years models consisting of an increasing but limited number of spherical harmonics have been produced . Maps produced have included free - air gravity anomaly , Bouguer gravity anomaly , and crustal thickness . In some areas of Mars there is a correlation between gravity anomalies and topography . Given the known topography , higher resolution gravity field can be inferred . Tidal deformation of Mars by the Sun or Phobos can be measured by its gravity . This reveals how stiff the interior is , and shows that the core is partially liquid . The study of surface gravity of Mars can therefore yield information about different features and provide beneficial information for future landing projects . </P>
<P> The gravity of Mars is a natural phenomenon by which all things with mass around Mars are brought towards it . It is weaker than Earth 's gravity owing to the planet 's smaller mass . The average gravitational acceleration on Mars is 3.72076 ms ( about 38 % of that of Earth ) and it varies laterally . In general , topography - controlled isostasy drives the short wavelength free - air gravity anomalies . At the same time , convective flow and finite strength of the mantle lead to long - wavelength planetary - scale free - air gravity anomalies over the entire planet . Variation in crustal thickness , magmatic and volcanic activities , impact - induced Moho - uplift , seasonal variation of polar ice caps , atmospheric mass variation and variation of porosity of the crust could also correlate to the lateral variations . Over the years models consisting of an increasing but limited number of spherical harmonics have been produced . Maps produced have included free - air gravity anomaly , Bouguer gravity anomaly , and crustal thickness . In some areas of Mars there is a correlation between gravity anomalies and topography . Given the known topography , higher resolution gravity field can be inferred . Tidal deformation of Mars by the Sun or Phobos can be measured by its gravity . This reveals how stiff the interior is , and shows that the core is partially liquid . The study of surface gravity of Mars can therefore yield information about different features and provide beneficial information for future landing projects . </P>
what is the force of gravity at the surface of mars
what is the force of gravity at the surface of mars
3.72076 ms ( about 38 % of that of Earth )
3.72076 ms ( about 38 % of that of Earth )