KOMPAS.com – Solar system consists of the Sun, eight planet, asteroid fibers, and oort clouds. But only on Earth is there life.
Have you ever wondered why not all planets are on solar system livable for Humans?
To be able to support human life, a planet must be included in the habitable zone (living area).
Reporting from Exoplanet Exploration NASA, the habitable zone is a planet that is not too hot, not too cold, has oxygen, dense soil, radioactive exposure is not too large, and also has a distance from the star that allows water to be liquid.
Water in liquid form is needed as a universal solvent in the process of removing sewage, sweat, toxins, replenishing body cells, dissolving vitamins, minerals, as well as medicines in the human body and other living things.
The essential function of water is what makes a planet unable to support human life without water in liquid form. In our solar system, only Earth has liquid water on its surface.
Also read: The Function of Water for Life
Other planet conditions
Mercury is too close to the Sun to have a very thin atmosphere, with very little oxygen. Mercury does not support life because it is too hot, has no liquid water (only ice and vapor), and is exposed to powerful solar winds all the time.
Venus has a very high atmospheric pressure, about 89 times greater than the atmospheric pressure of Earth. This enormous pressure can destroy the human body so that Venus is not habitable. Venus is too hot for any living thing nor is it completely waterless.
Mars has an atmosphere that is thinner than Earth, so it is very vulnerable to asteroid impact. Mars is also uninhabitable due to low oxygen levels and the absence of water on its surface.
However, it was recently discovered that Mars has traces of water and is predicted to have liquid water beneath its surface.
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