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Richard. Christian.
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On the way to the new Earth, you have to sail tens or hundreds of light-years. Humanity is not up to this requirement at present, and even if one day it goes, the new earth will be occupied by other advanced beings. For the time being, there are no accidents in our exploration of the universe, and some are only our internal affairs rather than cosmic factors preventing us from exploring, but whether there will be accidents in the future is not a situation that can be explained now.
Now there are many accidents caused by humans, including satellite junk and so on, and for the interest in outer space, these are all accident-free.
Because exploration is endless, coupled with human desires, we are not satisfied with the scope of the earth, but want to understand the wider universe. In order to understand how rocks and minerals are transformed by energy, human beings cannot do without the study of geological changes caused by asteroids hitting the earth; Only when an asteroid hits will silica be formed and silicate magma will be derived.
We human beings for the universe, we are like a lamb standing in the vast prairie, we can't just stand in place and wait for the resources to run out, we have to explore, to find a more fertile place in the grassland, of course, if you don't know about the grassland, it is also dangerous for us, in addition, the study of the universe is to study the past or future of the earth, there are countless celestial bodies in the universe, they may be our future, in order to avoid the arrival of that moment, we need to understand him, master the law, In order to better protect the earth and understand the earth.
Why don't you have money to change the earth we live on, and the runway outside the space is tossed, high technology should first benefit the earth's homeland, a day is to explore the universe without bounds, you must first understand that the earth has endowed all kinds of creatures, including human beings. Because the Earth is a member of the solar system, they are interconnected with each other as a whole. When exploring the Earth as a planet, it is necessary to look for the same kind in the system as a reference system.
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There will also be accidents, human beings' current space technology is limited, and there are many mysterious veils in outer space, so there will be accidents in the process of exploration.
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There must have been accidents, and there have been many accidents in space, and there was once an astronaut who wandered in space for some reason.
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Absolutely. If you don't go to outer space under any scientific conditions, it will lead to a lack of oxygen, and accidents will also occur due to gravity.
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The most dangerous spacewalk ever: 7 astronauts risk their lives to repair the Hubble telescope!
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Dangerous. Because space is weightless and there is no air, spacewalks are very dangerous.
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There must be a danger, if you push too hard, you may not be able to land all the time, and you will wander away in space, because space does not have gravity like the earth, so if you don't pay attention to it, your life will be in danger.
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There is danger. There are a lot of unidentified rays in space. It can cause harm to the human body. It is possible to be sucked into a black hole. You may also be injured by some meteorites.
Because the spacesuit has no power, once you let go, you are afraid of becoming space junk.