Since its discovery, astronomers have spent a lot of time trying to find a solution to the origin of this mysterious object.
In October 2017, astronomers discovered an unexpected visitor to the Solar System: a cigar-shaped rocky asteroid about 100 meters in diameter that crashed into the Solar System from the direction of the constellation. Lyra star with a speed of about 26 km/s, almost perpendicular to the ecliptic plane.

This high speed and high tilt suggest that it could not be an inner Solar System object, but came from a distant star system. This is the first time humans have discovered a celestial body from outside the Solar System in the Solar System. Because the object was discovered from an observatory in Hawaii, scientists from the International Astronomical Union named it ‘Oumuamua in the local Hawaiian language, which means “first messenger”. “.
Oumuamua was discovered on October 19, 2017 by Robert Weryk of the University of Hawaii’s Department of Astronomy using the Pan-STARRS telescope at Haleakala Observatory on the island of Maui, Hawaii.

The Pan-STARRS program is a project dedicated to monitoring near-Earth objects. This program can find potential near-Earth objects by comparing images of the same area of sky at different times. When Robert Weryk saw a suspicious bright spot on his computer, he wasn’t too excited because such discoveries are so common.

He just looked at the data as usual and looked up the data from the past few days, however later discovered that this bright spot had actually appeared twice, but it had been overlooked during processing. data. Using these data, he quickly calculated the orbit of this bright spot and was surprised to see that it did not have an elliptical or parabolic orbit like typical near-Earth objects, but rather had a double polar orbit. This means that this bright spot is not bound by the Sun’s gravity, but is moving through the Solar System at super high speeds and will never return.

Realizing that this could be a very important and rare discovery, Robert Weryk quickly sent this information to the International Asteroid Center. As soon as ‘Oumuamua was discovered, it caused great interest and curiosity from scientists and the public worldwide.

What exactly is it? Where does it come from? Does it have anything to do with alien civilizations? To unravel these mysteries, scientists have conducted in-depth observations and analyzes of ‘Oumuamua using various telescopes and instruments.

However, as ‘Oumuamua moves away from Earth, it quickly fades and becomes increasingly difficult to observe. Just two months after its discovery, ‘Oumuamua was no longer visible to even the most sensitive telescopes on the ground.

During the limited observation period, scientists collected some data and information about ‘Oumuamua, but also encountered some unexplained phenomena and contradictions.

These phenomena and contradictions have stimulated the imagination and creativity of scientists, and given rise to a number of bold and controversial hypotheses and speculations. One of the most prominent and discussed theories is that ‘Oumuamua could be an alien spacecraft or a type of solar sail (light sail). The hypothesis was put forth by scientists Shmuel Biali and Avi Loeb of the Harvard Center for Astrophysics.

‘Oumuamua has a very unusual length, an unreasonable technique for an asteroid, but with the structure of the spacecraft, it becomes very reasonable to minimize damage caused by interstellar dust.

According to precise measurements of ‘Oumuamua’s orbit by the European Space Agency and others, they discovered that ‘Oumuamua received a weak and persistent additional acceleration as it left the System. Sun . This speed cannot be accounted for by the known non-gravitational effects from stargazers, as ‘Oumuamua does not show any jet or startail activity.

Shmuel Biali and Avi Loeb believe that this additional accelerating force could come from sunlight, meaning ‘Oumuamua could be something that can be carried by sunlight, similar to the ease with which the Sun does man-made. A solar wing is a technology that uses the thrust of sunlight created by the Sun to launch a medium through interstellar space.

Although sunlight has no mass, it has momentum. When it shines on an object, it will transmit a very small amount to that object. If the object is light enough and large enough, this impulse can create a significant amount of speed.

The Indian government launched solar wing missions to support communications satellites in 1992 and 2003. The Japan Aerospace Exploration Agency (JAXA) successfully launched the new spacecraft IKAROS. was winged by the Sun in 2010 to study Venus and the Sun. Since then, NASA and the non-profit research organization Planetary Society have both successfully launched ships equipped with solar wings into low Earth orbit.

According to ‘Oumuamua’s speed and direction as it entered the Solar System, scientists deduce that it may have come from a star system about 20 light-years away in the direction of Cetus – a star system containing four red dwarfs , some of which have been confirmed to have corridors surrounding them.

Many conspiracy theorists believe that if ‘Oumuamua was really launched from this star system, it could take millions, even years, to reach us. During this long journey, ‘Oumuamua may encounter various mishaps and returns, breaths such as stellar wind, cosmic dust, and micrometeorites. These factors can affect the structure and function of ‘Oumuamua, causing it to not function normally or transmit signals. It is also possible that Oumuamua ‘itself’ is a detector or signal light that is only activated or sends a signal when it is near certain targets.

In any case, ‘Oumuamua gives us opportunities and gems to think about the possibilities and diversity of celestial bodies and life beyond the Solar System. ‘Oumuamua also made us realize that our understanding of the Solar System and the universe is still very limited, superficial, and that we need more observations and discoveries to expand our own vision and knowledge. me. Perhaps in the near future we will again encounter ‘Oumuamua or similar angels