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Science CLub 11A
Can humans live outside Earth?
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Transcript

Science CLub 11A

Can humans live outside Earth?

"the earth would turn into a giant ball of fire by 2600 and humans would need to colonize another planet or face extinction in 100 years" - Stephen Hawkings

Even if we find an alien home, it would not be enough to just get on the spaceship and fly to it. Man is adapted to the Earth. Neither space nor other planets are our natural place, rather they threaten our life. Would it be possible to adapt to them? Here are some crazy evolutionary ideas to achieve it.

But the thing is not so easy

+ INFO

Astronauts on the International Space Station notice that their bodies widen with the lack of gravity. However, their muscles and bones weaken. Could that mean that man would lose his bone substance if he spent a long time in space? Should we become amorphous beings to optimally adapt to microgravitation? After all, the first living things on Earth, bacteria, did not have bones.

1. Bones and muscles

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Many astronauts suffer from eye problems, ranging from blurred vision to blindness. Scientists wonder why. Is the ocular nerve affected in any way? Is it necessary that in the long term we all go blind in order to live a space future like animals in the dark of caves?

2. sight

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What about hearing? On Earth, vibrations generate sound waves that propagate. Outside the spaceship, emptiness reigns. There is nothing through which sound waves can propagate. In that case, would there be something to listen to? Would hearing be a superfluous sense? Would we need a different sense, totally unknown right now on Earth?

3. hearing

+ INFO

The biggest problem of all is that there is no air in space. In our new home, will we always have to wear an astronaut suit? If we weren't wearing it outside the ship or space station, we would die of suffocation. Or is it possible that we can live without oxygen? 1.4 million years ago, anaerobic bacteria already managed to do it. Would it be possible to return to a state prior to the need for oxygen?

4. breathing

"People say that Mars is not very habitable, nor is it as suitable for life as Earth. But if amphibians had followed that argument, we would still be living in the ocean." - Abbany

Biology vs Cosmology

The cosmologist J. Richard Gott say he already warned long before Stephen Hawking of the need to colonize other places. His argument: "We live on a tiny planet within the Universe. Species that live in isolation become extinct. If we had at least two planets, our chances of surviving would increase significantly."

Cosmology

Ralph Tiedemann agrees with S. Hawking that humanity faces "pressing problems." "But that doesn't mean it is threatened with extinction Especially if we take into account their intelligence, their ability to learn and adapt." Tiedemann believes that it is more difficult to imagine life outside of Earth than to survive on our own planet, even after a serious catastrophe. "The probability of that a complex organism like the human being can adapt to another world is very small”. Tiedemann did not want to enter into assessing our crazy proposals for adaptation outside of Earth.

Biology

How is the training of an astronaut?

What happens if an astronaut floats away in space?

The quiz password is: Space

Thanks!

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