A team of scientists from Harvard University states that an interstellar object, which goes beyond the Solar System, hit the Earth in 2014.
The researchers, one of whom is the creator of the theory that Oumuamua is an old alien ship, point out that the "interstellar traveler" collision with the sky over Papua New Guinea, according to a study pre-published on the Arxiv.org platform.
The report, signed by the controversial physicist Avi Loeb and Amir Siraj, also states that these effects are very common. Now the research must be evaluated by its peers to be published in the journal Astrophysical Journal Letters.
After analyzing the fastest meteors collected in a catalog of the last 30 years, the researchers found one in particular that, due to its orbit and speed, seemed to originate in a region of space outside the Solar System.
The object travels 60 kilometers per second and, after drawing the orbit, suggests that it comes from the deep interior of a planetary system, or from a star on the disk of the Milky Way.
"We found that one of these meteors must have traveled extremely fast to hit the Earth in the direction and speed it did," Siraj tells Newsweek.
"In fact, I was traveling so fast that I should have been released from the Solar System, which means that, like Oumuamua, it came from the outside of the Solar System," he adds.
Siraj says that, instead of looking in space, it is better to look at Earth, because these interstellar objects collide all the time against our planet.
The physicist explains that we didn't notice the impact because the object measured less than half a meter.
Loeb, head of the Astronomy Department of Harvard, has caused controversy by publishing a study that stated that an enormous rock that crosses our Solar System, which disconcerates astrophysicists, can be an extraterrestrial space ship.
"Oumuamua", as it was called, was discovered in October 2017 by the Pan-STARRS1 telescope in Hawaii, hence its name, which means "messenger" in Hawaiian. It is about 400 meters long and 40 meters wide and has been recorded by several telescopes as the first object known by another star system.