humans on mars

Human colonies on Mars might become a reality but the planet might have negative effects on the human body.

There are many plans to send people on Mars. Elon Musk, the CEO of SpaceX, has been dreaming about o human colony on Mars for a long time now and he even wants to move there. NASA is planning to send people on Mars after the Moon mission. There is also a semi-failed project about human colonies on Mars.

If all these plans become real, people might truly end up on Mars and this may have some effects on the human body as they will suffer some genetic mutations.

In a recent Ted speech, Scott Solomon, evolutionary biologist at the Rice University, talks about the changes colonists on Mars might experiment. After two generations of people on the Mars planet, the eyesight of people might be deteriorated and they all might need glasses. The Mars atmosphere will also effect the immune system. Because the surface of Mars is sterile, without microorganisms, the immune system of people will become void. Also, contact with people on Earth might even become deadly for them.

On the other hand, the skin color might also change in order to cope with the high level of radiations, so colonists on Mars might look different than people on Earth.

And, most importantly, the intensity of radiations exposure will be 5000 times bigger than that on Earth, during a normal life span. Inevitably, many people will suffer from cancer.

Scott Solomon says that future Mars inhabitants from Earth should prepare with the help of the CRISPR technology. This technology allows researchers to modify DNA sequences in order to prepare people for different life conditions.

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