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This mysterious object spotted tumbling through our solar system last year may have been an alien spacecraft sent to investigate Earth.
At least that’s what astronomers from Harvard University suggest in a research paper.
The Oumuamua was first discovered by a telescope in Hawaii.
It was traveling at speeds of 196,000 mph.
That high-speed is what the Harvard astronomers are basing their theory on.
Unfortunately we may never know if they are correct.
What we do know is that Oumuamua is the first object ever seen in our solar system that is known to have originated outside our solar system.