If humans are ever going to live on Mars as we do on Earth, we might have to become a little less ‘human.” The manned missions to the red planet are scheduled to launch by NASA in the 2030s, unless Bezos or Musk can do it faster. The journey will not be easy or fun for the astronauts. After all, they will have to endure high radiation exposure, microgravity harmful to bones, and other negative effects piling up on their bodies for several years in a row.

According to NASA’s plans, even with the worst possible outcome, the pioneers should still maintain the physical ability to return to Earth. However, those who will remain on Mars forever are a completely different story. Experts think that if people want to live permanently on planet Mars, we will have to make some changes to the genetic code of our species.

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