Lead
"Tianwen" is the code name of the next planetary exploration mission of the China Space Agency, and the name "Tianwen" has a very far-reaching meaning from ancient times to the present, it combines ancient culture and the spirit of space exploration, which means that human beings are eager to explore the starry sky.
The name of "Tianwen" also comes from the "Tianwen" chapter in the "Book of Songs", which has "Tianwen has a voice, how much sorrow can you have?" This sentence.
The ancients expressed their sorrows through Tianwen, and now the heart of this Tianwen "ask" has become the spirit of "Tianwen" human beings to continue to forge ahead and explore the starry sky.
However, the name Pluto also reflects the courage of people to explore the starry sky, because Pluto is not only extremely remote, but its environment is extremely harsh.
But humans still have an exploratory mindset towards it.
So what are the "scary" things about Pluto?
1. Characteristics of Pluto.
Pluto is an asteroid in the Kuiper Belt and the ninth largest planet.
In 1930, Pluto was discovered in the United States, and at that time, star exploration technology was limited to directly measuring the size of the discovered objects.
Therefore, many scientists have a lot of controversy about the size of Pluto and its position with other planets, some believe that Pluto is larger than Earth, and others believe that Pluto is smaller than Mars.
So after Pluto was confirmed as an asteroid, it was also considered a dwarf planet and no longer counted as the ninth largest planet, which is also more in line with Pluto's general size.
The biggest difference between Pluto and other planets is that Pluto is so far away from the star, the Sun.
Therefore, at the current level of science and technology, human beings can only detect Pluto through distant detection instruments.
In addition, Pluto is so far away from the Sun that it has a long orbital period, taking 248 years to orbit the Sun.
Pluto's rotation period is longer, taking 6.4 days, but because Pluto is a dwarf planet, there are currently no human probes on Pluto.
Pluto is also considered to be a cold world because its temperature is very low, only minus 233 degrees Celsius, and its exterior is covered with a thick layer of ice.
The biggest feature of Pluto is that its atmosphere is very thin, in human language, its atmosphere is very thin.
Pluto's surface also lacks oxygen, so humans cannot survive on Pluto.
On Pluto's surface, its atmosphere is constantly absorbing the sun's energy, so at night, Pluto's temperature drops to even more extreme values.
Pluto's atmosphere may become denser due to changes in temperature.
In Pluto's atmosphere, there is a large amount of dry ice, which contains ice-like carbon monoxide and nitrogen, and these ice-like materials will continue to sublimate and precipitate in Pluto's atmosphere, which will also cause Pluto's atmosphere to be more complex.
In the interior of Pluto, due to the gravitational pull of the sun, the dust and gas inside Pluto will continue to escape outward, which is why Pluto's atmosphere is so thin.
Pluto's interior is not necessarily free of volcanoes, and scientists have also observed some phenomena on Pluto's surface, which can be speculated that there may be volcanoes inside Pluto.
2. The living conditions of Pluto.
Although Pluto's environment is very harsh, it also has its own places that humans can yearn for.
Pluto was the first to be discovered, but it is not the farthest planet to be reached, so people have not stopped exploring Pluto, hoping to find more distant planets through more advanced probes.
However, Pluto is still the most distant planet for human beings, so human exploration of Pluto has become a phenomenon of human exploration of the limit.
In addition, the exploration of Pluto is also the beginning of human exploration of outer space.
Can humans live on Pluto?
This is a very interesting question, because Pluto's environment is quite harsh, but if you put it on Earth.
Then in the interior of Pluto, it is a very good place, for example, the environment of the earth is also very harsh, but there is a creature that can survive on the earth unharmed.
That is microbes, and Pluto has liquid water inside, so there may also be some microbes inside Pluto.
When scientists explored Pluto, they also found some material on the surface of Pluto, which can only be produced by life on Earth.
In addition, Pluto's interior temperature is also the most suitable temperature for microorganisms to survive, so it is possible for humans to find evidence of life on Pluto.
Of course, there are some scientists who believe that Pluto's environment is too harsh for humans to survive on Pluto.
In the environment of outer space, it is also difficult for humans to find habitable planets.
3. Human exploration and imagination of outer space.
Human exploration and imagination of outer space also have a long history, as early as ancient times, there are stories about exploring the starry sky in mythological stories.
Ancient people connected the stars with various animals by observing their movements, and there are also many myths about human exploration of outer space.
Now we have explored outer space to a certain extent through the means of science and technology, and have discovered many different planets.
Each planet has its own characteristics, so it also reminds humans that they must protect their planet well.
There are many planets in the universe, and the conditions of the planets are also very diverse.
But among these many planets, there are some planets where the conditions are very suitable for human habitation, and there are some planets where the conditions are so harsh that humans cannot survive on them.
Organisms on the earth are adapted to the environment on the earth, but there are still many creatures on the earth that cannot adapt to the environment on the earth.
Therefore, it is difficult for human beings to put the creatures on the earth into the environment of outer space, and so on, the creatures of the outer space environment cannot survive on the earth.
Although Pluto's environment is extremely hostile for humans, there are some creatures in Pluto's interior that can adapt.
Therefore, Pluto's environment is also a very good reference for mankind, or a warning for future human migration to outer space.
epilogue
Human exploration never ends, and Pluto is just one of the many unknown planets in the universe, so human beings should never stop exploring the universe.
At the same time, we must also protect the earth, because the earth is the most habitable planet in the universe.