The gravity of Mars is about twice that of the Moon . A person weighing 90 kilograms on Earth would weigh 15 kilograms on the moon and 34 kilograms on Mars . The biggest advantage of the high gravity is that it keeps the gases in the atmosphere close to the surface of the planet and creates a suitable area for respiration and photosynthesis . Also , low gravity reduces people ' s bone and muscle mass , so the bones and muscles of astronauts who live on the space station for a long time become extremely weak . Living on the moon for a long time would make the human body very fragile and weak . Thanks to the high gravity , solar radiation from the sun is absorbed by the poles of Mars and becomes harmless . The poles of our world also absorb solar radiation and this is how aurora is formed . however , the gravitational force of the moon is not sufficient to render this radiation harmless . Agriculture The lunar surface is not suitable for agriculture due to the lack of atmosphere and water , and the high temperature differences . Also , since the lunar surface is covered with glassy rock dust called regolith , there is no soil structure suitable for growing plants . On Mars , on the other hand , the suitability of the atmosphere and soil structure makes Mars more suitable for growing plants .
References :
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