Why would the discovery of life on Mars be "bad news"?
writing|Laugh at the history of Yunyanedit|Laugh at the history of YunyanaboutMarsHuman beings have been speculating for a long time whether there is life. As early asnineteenth centuryaboutMarsMarsMarsMarsMarsNot suitable for long-term human habitation
writing|Laugh at the history of Yunyan
edit|Laugh at the history of Yunyan
aboutMarsHuman beings have been speculating for a long time whether there is life. As early asnineteenth centuryaboutMars
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MarsNot suitable for long-term human habitation.
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MarsBright 3-4 timesWhen it is dark, it is difficult to see.
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In the atmosphere of VenusCarbon dioxide concentration up to 99%, surface temperature up to 400 degrees CelsiusSuch a scorching environment no longer allows for the existence of any life. Scientists have therefore abandoned their exploration plan to continue searching for signs of life on Venus.
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But NASA, which had access to the information, appeared hesitant before the announcement, and Jimmy's words were even more confusing to the outside world. He said that humans are not yet ready to face extraterrestrial life, and society lacks capacity to bear it.
This seems to run counter to humanity's longstanding desire for extraterrestrial life.
In fact, NASA's caution is not unfounded. On the one hand, the emergence of extraterrestrial life may shake humanity's status and values.
On the other hand, different countries and interest groups may use this discovery to engage in political games, leading to world turmoil. That's why NASA needs to handle it with caution,Don't act too hastily.
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Without the protection of the atmosphere, no life can survive the bombardment of radiation and ultraviolet radiation.
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Methane is indeed closely related to the existence of life. On Earth, most methane comes from the decomposition of plant and animal debris. If there is no biological effect,Almost no methane is produced.
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It is currently difficult to draw definitive conclusions on the source of methane gas in current research.
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aboutMars55 million kilometers of small neighborsIt has always filled humanity with curiosity and imagination.
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MarsAll kinds of speculations are still in the hypothesis stage, and more detection data is needed to be confirmed.
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MarsThe only planet that nurtures life.
This is mainly based on the following two points: firstly, within the current range of human observations, no direct evidence of life on other planets has been found; Secondly, the emergence and evolution of life require various conditions such as suitable temperature, atmospheric environment, water resources, etc. The probability of such a coincidence seems very low.
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Because this indicates that within the solar system, life has emerged on both planets that are suitable for life.
MarsLocated in the habitable zoneIf life appears in both samples, the likelihood of life occurring greatly increases.
Secondly, this also means that as long as the planet's position and environmental conditions are suitable, life is likely to occur. Considering the existence of billions of habitable planets in the Milky Way, the distribution of life may be more widespread than we imagine.
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To explain this contrast, scientists have proposed various hypotheses, the most striking of which isThe "big filter" theory.
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So, at which stage of evolution will this big filter come into play? It may be hidden at the transition point from simple life to complex life, or the leap from non intelligent life to intelligent life.
writingAs a final survival test. Due to the unclear location of the large filter, it is a huge unknown for humans.
It is very difficult for humans to confirm the location of the large filter, as it may come from unknown risks in unknown fields. However, it is reasonable to assume the existence of a large filter, as it can explain the anomaly of the 'silent universe'.
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It is not yet known whether humans can overcome this difficulty, but only by facing this hidden danger can humans strive to survive at the final stage of evolution.
At present, what humans need to do is to maintain humility, prudence, and rationality, delay the arrival of the big filter as much as possible, and buy time to accumulate strength. Instead of blindly optimistic, it's better to be vigilant and respond.
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