Astronomers from Harvard University hypothesized that the first interstellar object was not the famous cigar-shaped asteroid Oumuamua, but a meteorite that collided with Earth in 2014.
The research report is being prepared for publication in the Astrophysical Journal Letters, and briefly tells about it Science Alert. Researchers recall that in 2017, the scientific community was struck by the news of the discovery of Oumuamua.
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It is believed that this cigar-shaped object was the first cosmic body, which fell into the solar system far from outside. However, a new study proves that Oumuamua had a predecessor.
This is a meteorite that entered the Earth’s atmosphere in January 2014. It was discovered by scientists while studying the NASA Center for NEO Studies (CNEOS) meteorite catalog.
Among the many data was found information about the object, the speed of which was about 60 kilometers per second. Its diameter did not exceed one meter.
The fireball was spotted on January 8, 2014 over Manus Island in Papua New Guinea. The researchers calculated its trajectory, compared it with speed and concluded that this meteorite was not orbitally connected with the Sun.
Consequently, he got into the solar system from outside. Gravity of the star accelerated him to high speed. That is precisely this meteorite, and not Oumuamua, may be the first recorded interstellar alien.