Human appearance depends mainly on living conditions on Earth, so it was easy for scientists to come up with an approximate image of a human being who might survive on other planets. They designed a computer model based on data already available showing what humans would look like if they moved to Mars or Mercury.
The inhabitants of Mars would be much taller in a few generations, because gravity there is three times lower than on Earth. However, under such gravity, muscles and bones will become weaker, because they will not be subjected to the same level of stress as on Earth.
People's skin is likely to turn orange due to direct ultraviolet light exposure, that causes keratin buildup, the same keratin that dyes many vegetables orange. A resident of Mars would probably be skinny, tall, and orange.
Mercury is considered the most unfavorable place to survive in the model. Temperatures on Mercury rise above 800 degrees, and the only chance for humans here is to transfer their consciousness into a titanium cyborg.
On Venus, humans would have to turn into tiny microbes. This is due to the high levels of phosphine in this planet's atmosphere, which the human body cannot tolerate, but acts as a growth hormone for insects.
See the video below for a complete list of human body changes on other planets in the solar system:
Theoretically, flights to other planets will become possible in the coming decades, and perhaps the next generation will begin to adapt to the new living conditions.
Source: trendymen
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