Oumuamua likely came from a Pluto-like exoplanet

Omamua, an extrasolar object first observed in Hawaii, resembles a comet but is unique enough to spark speculation about its nature, including theories of it being an alien spacecraft. Arizona State University astronomers suggest it is made of frozen nitrogen, similar to Pluto and Triton's surfaces, likely ejected from a Pluto-like exoplanet. Its shape, akin to a bar of soap, is due to cosmic and solar radiation. Unlike typical comets, Omamua lacks a visible tail. By 2040, as it exits the solar system, it will be significantly flatter.

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