A few decades ago, astronomers began to consider ways in which to maximize the benefits of a moon colonization program. First of all, this is, of course, the construction of telescopes, because due to the lack of atmosphere gamma, X-rays and other types of radiation will not be blocked by atmospheric cover, which means they will allow more space exploration. But there is another plus in the absent lunar atmosphere: because of this, signs of extraterrestrial civilizations can be detected on the satellite of our planet.
Are there aliens on the moon?
A new article authored by Harvard University astrophysicists Abram Loeb and Manasvi Lingam answers this question with a fair amount of optimism. True, this is not entirely about the aliens themselves. The idea is to consider the moon’s surface as a “fishing net” for interstellar objects that could easily fall onto its surface over such a long satellite lifetime.
The absence of a lunar atmosphere ensures that these hypothetical objects reach the lunar surface without partially or completely burning out in the atmosphere, as happens on Earth. In addition, the lack of geological activity suggests that if an object ever fell, it will remain on the surface and will not "go" into the bowels of the moon.
The moon is a natural mailbox in which messages have accumulated over the past several billion years. Now there is even life brought from the Earth – frozen tardigrades. – say the scientists
Of course, if you start exploring the lunar surface, it turns out that most of the materials came from our Solar System. But even if exceptions happen “in our lifetime”, then where is the guarantee that this has not happened before? So, for example, not so long ago, the Oumuamua space object and Borisov’s comet “flew” to us. But even if we assume that there is still something on the moon, then how to find it? After all, equipping lunar expeditions for this purpose is very long and unreasonably expensive. Express your assumptions in our telegram chat.
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The easiest way would be to use satellites in orbit of the moon. Already, there are quite powerful and accurate scanners that can remotely show the ratio of various elements in the composition of materials. We need only, roughly speaking, to enter data on the ratio of the organic and inorganic compounds of our solar system into these scanners. For example, a deviation from the ratio of oxygen, carbon and nitrogen isotopes unique to our planet will indirectly indicate that the found object may be of extraterrestrial origin.
It would be even more exciting to find traces of technological equipment that crashed on the lunar surface billions of years ago, which is also possible, because there are not so many “ours” on the moon. Therefore, the presence of inorganic objects located at a great distance from the known places of the landing of people and the fall of earthly objects can bring a lot of surprises.