A strange rock, the size of the Empire State Building in New York, was spotted passing by Earth on Oct. 19, 2017, the Daily Star said.
Questions remain about the nature of this body, as researchers and experts failed to reach a definitive answer.
Scientists have said the "alien space piece," called "Uwamwama," may be a "guilty star", pointing out that it was moving fast around the sun instead of slowing down its speed.
Researchers at the Harvard Center for Astrophysics say the movement and speed of the body may be an indication that it is a "space object".
"Jumping in front of the sun means that the sunlight is reflected directly on your surface, I think the body is very thin, which allows it to pass through the ground very quickly," said researcher Abraham Loeb.
In contrast, Yuri Milner, a researcher in physics, revealed that the shape of the body is rectangular and strange compared to asteroids or spacecraft. "The question remains: where did this thing come from?"
