Governments have secret plans in place for the possibility of landing abroad, confirmed an astronomer.
However, these plans would crumble if an alien landing ever actually occurred.
In view of the LBC, Eddie Mair revealed: "They have plans, probably not big plans for what they would do or if an astronomer with a telescope picks up a single from a distance star that it's artificial in someway.
"There are plans to deal with it, telling the competent authorities like the United Nations, world leaders and preparing the way to explain it to the public.
"But all these plans would fall into pieces, immediately someone discovered something because they just will not work."
Talking about a new study that recently found that a large rock-shaped object floating through space could be a spacecraft, the astronomer said: "Astronomers now believe that there may be many of these objects, maybe even caught in our solar system at that time and we have not seen them.
"Or I can not take myself to rule out and say that this is 100 percent an asteroid or a comet far away, I can not quite say that although there is a narrow, narrow, narrow chance, I can not quite say that it's not a spaceship. "
Astronomers at Harvard Smithsonian Center for Astrophysics Shmuel Bialy and Abraham Loeb have said that "Oumuamua, a mysterious object that flies near the sun, may have been sent by foreigners to investigate other galaxies.
Originally, researchers surveyed data gathered by the Pan-STARRS-1 survey on "Oumuamuas closest flight to the sun in September 2017, and noted that the object increased speed instead of slowing down.
The scientists said that this was caused by rock exhaustion and released gas stuck inside it.
Officials later classified it as comet.
But Bialy and Loeb do not agree with this explanation, meaning that the output would have sent it to a spin that was not observed.
Rather, they argue "Oumuamua could have been a spacecraft based on radiation as a power source sent to find other signs of life in other galaxies.
Speaking to the Universe Today, Loeb said, "We explain the overriding acceleration of" Oumuamua away from the sun as a result of the power of sunlight on the surface.
"In order for this force to explain measured excess acceleration, the object must be extremely thin to order a fraction of a millimeter in thickness but tens of meters in size.
"This makes the object easy for its surface and makes it possible to work as a light sail.
"Origin may be either natural or artificial."