Aliens visited Earth in 2017 but scientists ignored them, a top US astronomer has claimed. Harvard Professor Avi Loeb, who previously collaborated with Stephen Hawking, made the claims in a new book, Extra-terrestrial: The First Sign of Intelligent Life Beyond Earth.
He is reported to have argued that the best explanation for a highly unusual interstellar object caught speeding through our solar system five years ago, was that it was alien technology.
But the 58-year-old is said to be convinced that his peers wrongly dismissed the unusual object, which is named ’Oumuamua' after the Hawaiian word for scout, as an asteroid, and thinks instead it could have been a sail.
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