Oumuamua was detected in 2017 and its name means ‘messenger who arrives first from afar’; The astrophysicist published a book calling it “the first sign of intelligent life outside the Earth”
In October 2017, astronomers from the University of Hawaii, United States, detected a strange object 400 meters long, traveling through the Solar system at a speed of 87.3 kilometers per second. Researchers became intrigued by the origin of this phenomenon – which has been classified as a comet, an asteroid and even a part of an alien spacecraft – and named it Oumuamua. In Hawaiian, “oumuamua” means “messenger from afar who arrives first.”
Oumuamua became known as the first known object to arrive in the Solar System from another star. Observations suggest he entered Milky Way, independent of any star system, for hundreds of millions of years before its chance encounter with our star system. Its proportions are larger than those of any asteroid or comet observed to date in our solar system NASAthe American space agency.
When the object was detected by the Pan-STARRS telescope in Hawaii, it was initially classified as an asteroid until further measurements revealed that it was accelerating slightly, a sign that it is behaving more like a comet, even though it was accelerating like a comet. , it didn’t have the shine of one or powder. It didn’t even have a distinctive tail that all comets have.
The most plausible answer, which seems to answer all these doubts, is the hypothesis that Oumuamua is probably an icy planetary block, substantially similar to comets, driven by tiny quantities of hydrogen gas flowing from an icy core, according to a study research published in the journal Nature in March this year.
This hydrogen gas released by heating amorphous water ice likely drove Oumuamua’s nongravitational acceleration, or acceleration beyond the influence of the Sun. This hypothesis was also consistent with the lack of dust: Oumuamua would not have sublimated the dusty surface ice like comets with tails. , releasing only the trapped internal gas.
Extraterrestrial object?
Avi Loeb, astrophysicist at the University of Harvard and chairman of the advisory board for the Breakthrough Starshot Loeb project, however, denies this hypothesis. “The authors of the new paper say it was an icy comet, even though we didn’t see the tail of the comet,” Loeb told the New York Times after the study was published. He added: “It’s like saying an elephant is a zebra without stripes.”
For him, Oumuamua could be linked to extraterrestrial technology. His theory is laid out in the book Extraterrestrial: the first sign of intelligent life beyond Earth (“Extraterrestrial: The First Sign of Intelligent Life Outside of Earth”, in free translation), which was a bestseller. To strengthen his thesis, Loeb cites the inexplicable properties of the first interstellar visitor: its extreme size, its enormous luminosity, and the pulse of velocity acceleration that caused it to disappear from our telescopes.
“The simplest explanation for these peculiarities is that the object was created by an intelligent civilization that is not from this Earth,” he said in the book.
Source: Terra
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