Tuesday , September 28 2021

The science triumphal game is about whether "Oumuamua was a strange spacecraft"



Scientists are still raving about last year's interstellar guest, "Oumoamua, and the latest theory will definitely induce UFO believers. According to a new book published by Harvard University astronomers, mammoths, cyber-shaped rocks that rocked and shifted from our solar system in October 2017 , had some strange features indicating that it was an alien spacecraft. And while "the unique physical properties of Oumuamua have led some scientists to think of foreigners, other scientists are not confident and even worried about the impact of such a hypothesis.

"Oumaamua can be a fully functional probe delivered to an alien civilization with the intention of near Earth," writes Abraham Loeb, professor and chief of astronomy, and Shmuel Bialy, a postgraduate researcher at the Harvard-Smithsonian Astrophysics Center.

"Ouwamo, who is a Hawaiian" subject from afar, "was first observed by a post-graduate researcher at the University of Hawaii who shifted the data stream from the Pan-STARRS astronomical survey on the sky. The researcher noticed that the object was very elongated, such as a stick with a long axis That is, the magazine Monthly Notices from the Royal Astronomical Society Magazine explained that "Oumoamua's leap to ours The solar system thanks to the gravitation gradient of the binary star system.

The researchers came in the latest order of extraterritoriality, focusing on one of the most interesting features of the rock: its trajectory of unexpected acceleration after turning around the sun, which suggests it was driven in the sun. Since no signs of cometal activity were observed – such as the mood of the mood or gas emission absorption lines – Harvard researchers might have ruled out that it might have been a comet.

"Oumaamua deviated from the trajectory that is determined solely by the Sun's gravity," Loeb said in a salon statement. "It may have been the result of distortion of the comet, but there is no evidence of the mood behind it. In addition, the comets changed their spin time and such changes were not revealed for Oumoamua.

By developing a hypothesis using a mathematical model, the authors assume that "the non-destructive acceleration of Oumuamua was due to solar radiation pressures.

"The only other explanation that comes to mind is the extra strength that Ouhamau exerts in the sunlight," Loeb Salon said. "To be effective," Oumaamua should be less than a millimeter thick, just like sails. That led us to believe that it may be a wind breaker produced by alien civilization. "

Light traction systems have been created on Earth, and their origins date back to the seventies when NASA drove the idea of ​​sailed sailing to Halley's Comet. The project was canceled, but the not-for-profit planetary association has since successfully set up its program for the construction of light bike spacecraft.

But precisely this speculation creates a small line between scientists. Some researchers claim the Salon on the theory that "Oumuamua's alien light sails are false and come into the realm of science, because it is undisputed.

"In science, we need to be very careful about our hypotheses," said Paul Sutter, PhD at Ohio State University's Astrophysicist, at Salon. "My main criticism is that as soon as you import foreigners as a hypothesis, you stop the science work because foreigners are able to do whatever they want."

Sutter said that it is impossible to test such a hypothesis.

"We can be free to have any idea what we want, and crazy ideas are welcome, but they must be verifiable," Sutter said. "Since [aliens are] always available, you can never turn it off, so you can not do science with science. "

"Despite the fact that Oumuamua led the researchers' uncertainty and strange behavior to speculate outside the outside world, he said that scientists should be more patient or assume that they never know what a foreign arm is. "

"Our only hope is that" Oumoamua is not the only one out there and that there are other random stones in our solar system, and hopefully we can find "Oumuamua cousins ​​or great aunt [next]," he said.

Set Sostak, a senior astronomer who was searching for surface intelligence (SETI), told the salon that the theory could be "an exotic solution to what can be a very routine situation."

"It could be a sunny sailor who just left our solar system or those who deliberately targeted us, [but] you can not say that this is not true, because it can not be proved that this is true, "said Shostak Salon.

He added that it was a foreign spacecraft that was deliberately sent, it is worth noting that it was not close to the Earth.

"You think they would have an interesting goal," he said. "It just comes, rocking around the sun and going back, it's like an interesting person moving around, going to your house, and they do not go to the door or anything, so I do not get it."

Dr. Michael Wall, a senior writer at Space.com and author of the forthcoming "Out There" book, said it is unlikely that "Oumoamua is a strange spacecraft, this option should not be completely ruled out.

"I do not think this is possible, but aliens should be almost the last explanation," he said. "First of all, all natural explanations have to be deepened, but I do not think it should be released."

Since there is nothing like Oumoamua in our solar system, natural explanations for humans are still unknown.

"It's very likely that we do not have enough information and we probably will never be," Wall said. "It's interesting, but it only shows that we have to worry about being too miserable and too logical."

At the end of the day, this article has been the topic of many scientists talks. Loeb told the cabin that he did not expect the paper to attract so much attention.

"I'm glad to see the excitement about paper, but it's not written for that," Loeb said. "We just followed the standard scientific research practice."

Nicole Kārlis

Nicole Kārlis is the author of the story at the Salon. She covers health, science, technology and gender policies. Add it to her @nicolekarlis.
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