Cigar-shaped interstellar object may have been an alien probe

Illustration of Oumuamua

A mysterious cigar-shaped object seen in our solar system a year ago may have been alien spacecraft, sent to study the Land, he assumed the astronomers of Harvard University.

This theory was proposed by the astronomers of Harvard University, reports UNN citing CNN.

The Oumuamua was spotted late previous year as it drifted into the solar system and passed close enough to the sun that it could be seen on observational telescopes.

And scientists still don't know if it represents an entirely new class of objects - neither comet nor asteroid - that are hurtling through the galaxy.

"It's certainly ingenious to show that an object the size of Oumuamua might be sent by aliens", says SETI Institute astronomer Seth Shostak. But unlike the millions of known asteroids in our solar system, this one was traveling so fast - more than 70,000 miles per hour - that it couldn't be captured by our sun's gravity, the scientists reasoned.

Oumuamua was the first interstellar object to ever be seen by mankind, with unusual characteristics such as its "extreme aspect ratio" and "spinning motion". "Lightsails with similar dimensions have been designed and constructed by our own civilization", an excerpt from the paper read. A light sail is an advanced, but still theoretical, form of spacecraft propulsion that would use radiation pressure from a star to push an object along, like wind on a sailboat's sail. That it could be a "lightsail, floating in interstellar space" not unlike the type being built on Earth as part of the Starshot Initiative. The velocity and trajectory of the object, which was discovered on 19 October, pointed to the fact that it originated in a planetary system around another star. Of course, one could now say it was an accident, or the aliens did this to deceive us.

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Going forward, the researchers believe we should search for other interstellar objects in our sky.

A new study as found a huge cigar-shaped object travelling through space could be an alien spaceship. "Moreover, comets change the period of their spin and no such change was detected for Oumuamua", Loeb said. "Carl Sagan once said, "extraordinary claims require extraordinary evidence" and this paper is distinctly lacking in evidence nevermind extraordinary evidence".

Oumuamua has now left the solar system and is no longer visible even with telescopes.

In a letter published in The Astrophysical Journal Letters on 12 November, the researchers add that Oumuamua could be a spacecraft pushed along by light falling on its surface.

"Aliens would only come into all of this if you accept their assumption (and that's what it is; it doesn't come from the data) that "Oumuamua is sail-like, and also assume nothing like that can be natural", Bailer-Jones wrote in an email".

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