Researchers at the SETI Institute have not located artificial radio signals on the surface of this rocky object that confuses scientists who still do not rule out that it is alien in nature.
The long-term observations of the asteroid Oumuamua at the time of its approach to Earth exclude the presence on its surface of any artificial source of radio waves or other signals, but this can not definitively rule out that this object has an unnatural extraterrestrial origin. . This was the conclusion of the Search for Extraterrestrial Intelligence (SETI) astronomers, who are looking for intelligent life forms in the universe.
The importance of Oumuamua is that it is the first asteroid detected that does not come from the Solar System, and its strange behavior even led some scientists to consider the possibility that it was a alien ship
In a study to be published in the journal Acta Astronautica next February, SETI researchers explained that they used the Allen Telescope Array (ATA) antenna field to try to detect artificial radio transmissions coming from Oumuamua. The observations were made between November 23 and December 5, 2017, and consisted of & # 39; scanning & # 39; the celestial body in search of this type of signal. They failed to detect anything, even though experts were looking for even lower power emissions than our cell phones.
"We were looking for a sign to show that this object incorporates some technology of artificial origin," explains Gerry Harp, lead author of the study, in the SETI article. "We did not find these emissions, despite a fairly complete search," said the scientist, noting that the observations of the research institute do not rule out conclusively that the asteroid may have an unnatural origin.
The nature of Oumuamua ("first messenger" in Hawaiian) has been surrounded by mysteries since the day it was discovered by astronomers from the University of Hawaii in October 2017. After noticing changes in the speed of its displacement , the Harvard-Smithsonian Center for Astrophysics (USA) recently suggested that the asteroid could actually be a "probe" sent to Earth intentionally "for an alien civilization".