Scientists are still confused by the last year's interstellar visitor, "Oumuamu, and the latest theory will surely excite UFO worshipers." According to a new article published by astronomers at Harvard University, a mammoth cigar wall that turned into our solar system in October 2017 had there are some weird properties that suggest that it is an alien universe. And while "the unique physical properties of Oumuamu have led some scientists to speculate about aliens, other scientists are not convinced and even concerned about the effect of such assumptions e.
"Oumuamua is perhaps a fully operational probe that the alien civilization sent deliberately to the Earth's environment," wrote authors Abraham Loeb, professor and chair of astronomy, and Shmuel Biali, a postdoctoral scientist, at the Harvard-Smithsonian Center for Astrophysics.
Oumuamua, Hawaiian for the "distance object", was first observed by a postdoctoral researcher at the University of Hawaii who passed through a stream of data from the astronomical research of the Pan-STARRS sky. The researcher noticed that the building was extremely elongated, like a rod, with a long axis 10 times longer than its short axis. The researchers suggested that its shape would reduce abrasion from interstellar gases and dust, making it an ideal shape for interstellar aircraft. Then, in May, an article published in the Monthli Notices of the Roial Astronomical Société magazine suggested that "Oumuamua turn to our solar system as a result of the gravitational sling of the binary star system.
The researchers landed at the last world conclusion focusing on one of the most interesting rock properties: an unexpected trajectory of acceleration after anger passed from the Sun, suggesting that it was powered by sunlight. Given that there were no signs of cometary activity – such as a comet tail or gas absorption lines – the possibility that it was a comet, they came out in a Harvard study.
"Oumuamua deviates from a trajectory that is exclusively dictated by the gravity of the Sun," Loeb Salon said in a statement. "This could have been the result of comic stripping, but there is no evidence of a comet's tail around it. Moreover, comets change the period of their rotation, and such a change was not detected for" Oumuamu ".
After making the hypothesis through a mathematical model, the authors speculate that the non-gravitational acceleration "Oumuamu" is due to the pressure of solar radiation.
"The only other explanation that comes to mind is the extra force in the sun" Oumuamu, "Loeb Salon told" To be effective, "the Oumuamua must be smaller than a millimeter in thickness as the core. This has led us to suggest that it can be a sailor who produces alien civilization. "
On the planet, mobile sailing systems were created, and their origin originated in the 1970s, when NASA played the idea of flying the solar core on the Hallei comet. The project was canceled, but the non-profit planetary society has since successfully established its program for the construction of a sailing vessel.
Yet this precisely this speculation causes a lower order among scientists. Some researchers tell the Salon the theory that the "Oumuamu" strange light-core is missing and falls outside the sphere of science, because it is improper.
"In science we have to be extremely careful about our hypotheses," Paul Sutter, an astrophysicist at State University of Ohio, told Salon. "My main criticism is that as soon as you introduce aliens as a hypothesis, you cease to do science, because aliens are able to do whatever they want."
Sutter said there was no way to test such a hypothesis.
"We are free to have the idea we want, and crazy ideas are welcome, but they have to be tested," Sutter said. "From the [aliens are] Always available you can never turn it off, which is why you can not do science. "
The uncertainty and strange behavior of the Oumuamu have led researchers to speculate with extraterrestrial origin, Sutter said, adding that scientists should be patient or accept that they will never know what a foreign wall is.
"Our only hope is that" Oumuamua is not the only one there and there are other random rocks that fall through our solar system, and we hope we can find an observer "Oumuamu cousin or great aunt [next]," he said.
Seth Shostak, an older astronomer in Search for Ektraterrestrial Intelligence (SETI), told Salon that theory could be "an exotic solution for what could be a very tangible situation."
"It could be somebody's solar core that just wandered into our solar system or the one that deliberately directed our, [but] you can not say that this is not true because there is no way to prove that this is true, "said Salon Shostak.
Shostak added that it is an alien space that is deliberately sent, it is worth noting that it has not approached the Earth.
"You would think it would be an interesting target for them," he said. "It's just coming around, it's turning around the Sun and it's backward; it's like someone who's interested in moving to the neighborhood, walking around your house, and knocking on the door or nothing, so I do not understand it."
Dr. Michael Vall, senior writer at Space.com and author of the upcoming "Out There" book, said while he thought it was unlikely that the Oumuamu was an alien spacecraft, that it should not completely shut off the possibility.
"I think it's unlikely, but aliens must almost be the last explanation," he said. "You must first empty all the natural explanations, but I do not think that should be rejected."
Given that nothing like "Oumuamu" is not observed in our solar system, natural explanations can still be unknown to humans.
"It's very likely that we do not have enough information and we will probably never," Vall said. "It's interesting, but it only shows that there is a thin line that we need to pass between being too negative and too comfortable."
At the end of the day, this article is an entirely topic of discussion among many scientists. Loeb told Salon that he did not expect the paper to attract so much attention.
"I'm glad to see the excitement of the newspapers, but it's not written for that purpose," Loeb said. "We have just followed the standard practice of scientific research."
Nicole Karlis is a journalist in the salon. It includes health, science, technology and gender policy. It's tweetay @ nicolekarlis.
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