The Harvard Professor Who Speculated Oumuamua as Alien Solar Sail

It back in the month of October last year when the first interstellar object known as Oumuamua was discovered in Hawaii by the Pan-STARRS 1 telescope. Recently a paper got published by Dr. Avi Loeb of Harvard University and Harvard Smithsonian Center for Astrophysics. Here, they said that it might well be an artificial alien light sail. Oumuamua seems to be quite a weird object, something which nobody has seen before. It has got an extreme shape, purely based on the variation in reflected light from the Sun.

Dr. Avi Loeb said that Oumuamua is like the local standard of rest, which is the average of all the stars lying within the Sun’s vicinity only one in 500 stars. Loeb said that if the aliens did not want anyone to be aware of where one’s origin lies, they would move at the rest frame. The Professor said that the observations of the object made by The Spitzer satellite did not detect thermal emission. It seems as if it is a very good reflector and absorbs very less of the sunlight. The most intriguing part is that it moves on a trajectory that clearly shows an extra push, adding up to the gravitational force from the Sun. One might think that the push is because of a cometary outgassing where water ice evaporates and hence gives through the rocket affect some sort of push to the object. It is unfortunate that it could not be in this situation because no cometary tail was seen around it.

Dr. Loeb believes that now it is quite hard to study Oumuamua. The object is moving away from everyone. This is where the problem lies. It moves at a speed, which is two to three times the speed of chemical rockets. The professor said that they have made use of chemical rockets for most of their space missions carried out in the past. Hence, they cannot use chemical propulsion. Neil DeGrasse Tyson thinks that Oumuamua is nothing but just a clump of rocks. Hence, its elongated shape is from gravity pulling up the rocks into a chain.


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