Thin Atmosphere

A thin atmosphere refers to a layer of gases surrounding a planet that is very sparse or sparse in density. For example, Mars has a thin atmosphere composed mostly of carbon dioxide, with very little air pressure compared to Earth. This means there are fewer gas molecules to provide weather, protect from radiation, or support life as we know it. A thin atmosphere offers less insulation and shielding, making the environment more extreme and less hospitable. Overall, it indicates limited atmospheric material, affecting the planet's climate and potential for supporting life.