00:00What if we discover that the human body simply cannot survive outside of Earth?
00:05What if children can't be born in space?
00:08What if lunar gravity condemns any baby to irreversible deformities?
00:13These are not science fiction scenarios.
00:17The answer to these questions may determine whether or not humanity will have a future among the stars.
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00:31Scientists fear facing this.
00:35Since the 1970s, the National Space Society has been studying how to send humans to live permanently off Earth.
00:44Orbital stations, lunar bases, and Martian cities were planned in detail by renowned engineers and scientists.
00:56These plans ranged from space hotels to farms on asteroids.
01:01But they all had one fundamental assumption.
01:04That the human body could adapt.
01:07Nobody has actually tested this.
01:09No child has ever been born outside of Earth's gravity.
01:14Astronauts spend months on the International Space Station and return with brittle bones, atrophied muscles, and vision problems.
01:23But they are trained adults.
01:25What would happen to a developing fetus?
01:28That's the question no one can answer.
01:32Gravity has shaped every cell in our bodies over millions of years of evolution.
01:38Our bones grow against the resistance of weight.
01:42Our heart pumps blood, defying gravity.
01:46Even the development of a child's brain depends on it.
01:51On the Moon, gravity is only one-sixth that of Earth.
01:55On Mars, one third.
01:58Studies with rats in microgravity have revealed severe bone abnormalities and problems in the nervous system.
02:05But these animals only spent weeks in space, not a lifetime.
02:11The National Space Society acknowledges in its documents that it is essential to demonstrate that mammals can complete three healthy generations before
02:21to test with human families living permanently in space.
02:25The reality is that nobody has done that yet.
02:30But there is something even more worrying.
02:32Cosmic radiation in space is 600 times more intense than on Earth.
02:37And this radiation can damage DNA, causing unpredictable mutations.
02:43In adults this is dangerous, but in developing embryos it can be catastrophic.
02:50Colonization projects cost trillions of dollars.
02:54Giant spaceships will be built.
02:56Foundations will be laid.
02:58But if a child is born deformed or dies in the first few months, everything will fall apart.
03:04The entire dream may be based on an extremely risky biological gamble.
03:11Some scientists are proposing giant centrifuges to simulate artificial gravity.
03:17Others suggest genetic modification.
03:20But some argue that only adults should live in the space, without families.
03:26These are desperate solutions to a problem that may be unsolvable.
03:31The truth is, we don't know if humans can live permanently off Earth.
03:37There is no concrete proof.
03:39All grand plans ignore this fundamental uncertainty.
03:43We are building cities for a species that may not be able to inhabit them.
03:49Perhaps space colonization will require us to rethink what it means to be human.
03:55Or perhaps we just need to accept that we are creatures of the Earth, shaped by its gravity.
04:01Or perhaps we need to transform ourselves into something new to survive among the stars.
04:08The future of humanity in space depends on answers we don't yet have.
04:13And you?
04:14Do you believe we will be able to live permanently off Earth?
04:18Or are we eternally prisoners of Earth's gravity?
04:22Comment respectfully.
04:24Like and subscribe to the channel.
04:48Transcription and Subtitles by Dear Child of God
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