Oumuamua, the first interstellar object identified, has reached the headlines since it was discovered in 2017. Since then, researchers have described what it could be, with some suggesting that it could be an easy sail from other cultures, while others have suggested it could be a comet or an asteroid.
But now, a new study suggests that Oumuamua is not alone – another interstellar object disintegrated in Earth's atmosphere five years ago.
The study, which was submitted Journal of Astrophysical Journal NASA has already identified an interstellar object, a five-foot meteorite detected on January 8, 2014 across Papua New Guinea, which is cataloged with the Center for the Study of Objects Near Earth, So that it comes from outside the solar system, according to the authors of the study, Amir Sirah and Avi Loeb.
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"Based on the [Center for Near-Earth Object Studies’] A catalog of the Boulder events, we identify the ~ 0.45m meteors identified … as originating from an unorganized hyperbolic orbit … outside the solar system, "the researchers wrote.
They continued: "Its high LSR speed suggests a possible source from the depth of the interior of an asterisk or star system on the thick disk of the Milky Way galaxy."
Loeb is not alien to interstellar objects, having previously written a study that could have a large number of similar objects to the Umayama floating around the Milky Way galaxy, but humanity has yet to find them.
Chairman of Astronomy at Harvard University, Loeb is also the researcher suggested by Oumuamua is an extraterrestrial probe.
Speaking with Space.com, Loeb said that the speed of Meteor 2014 may indicate that it received a sudden gravitational boost outside the solar system.
"You can imagine that if these meteors are emitted from the living area of a star, they can help transport life from one star system to another," Loeb said.
In addition to the 2014 meteor that flew over Papua New Guinea, Loeb and Siraj discovered two other meteors in the CNEOS catalog that traveled at similar speeds, eventually analyzing 30 years worth of data. One of the meteors was seriously attached to the solar power (because of its orbit), while the other is not defined, LiveScience reported.
Along with John Forbes, Loeb has previously written that objects may be interstellar "collide with the Sun once every 30 years, while about 2 pass Mercury's orbit each year."
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In the closest approach, Oumuamua had about 0.26 astronomical units (AU) away from the sun or about 24.2 million miles. One AU is about 93 million miles.
Another astronomer, Greg Laughlin of Yale University, also believes that may, in fact, be trillions of objects similar to the Ouamuamua Milky Way, according to Space.com.
Oumuamua, the Hawaiian name for "pathfinder" or "scout", was discovered in October 2017 by the PanStARRS1 telescope after it noticed a new spot of light coming from a strange direction at a particularly fast speed.
NASA said it was a "metallic or rocky object" of about 400 meters (1,312 meters) long and 40 meters wide, but the government's space agency said in November that it had not seen the object originally, And perhaps even added some validity to the theory of Forbes and Love.
Oumuamua is planned to enter the orbit of Neptune in 2022 and about 20,000 years, and will make its way out of the solar system for good.
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