'Oumuamua is a foreign visitor, from an alien Pluto style planet

Image credit: M. Kornmesser/ESO, fair use doctrine. 

Joel Kontinen 

Ever since it floated into our system, the interstellar visitor Oumuamua has intrigued and perplexed scientists. In 2017, 'Oumuamua was heralded as a spaceship sent by aliens. 

This was the opinion that Harvard astrophysicist Avi Loeb had. This was the opinion that Harvard astrophysicist Avi Loeb had. However, a new study says that 'Oumuamua's origin is explained by the fact that “two Arizona State University researchers argue that a nitrogen iceberg fits the data at least as well as a hydrogen iceberg: Such an iceberg could have become a wide disk as its surface slowly evaporated during its travels through the galaxy, just like a bar of soap flattens over the course of many showers. And,like hydrogen, evaporating nitrogen wouldn't be visible to telescopes””.

Source:

 Letzter,  Rafi, 2021.  Interstellar visitor came from an 'alien Pluto,' new study suggests  Live Science 19 March.