A mysterious cigar-shaped object spotted tumbling through our solar system last year may have been an alien spacecraft sent to investigate Earth, astronomers from Harvard University have suggested.

A mysterious object spotted floating through our solar system last year might be an alien spacecraft that was investigating Earth, according to Harvard astronomers. The astronomers suggested the ...

An ominous UFO has breached our solar system and is hurtling toward Earth – and researchers suspect the extraordinary object may be an alien spacecraft sent to survey humanity ahead of an invasion, ...

He cited the astronomical gaffe in January, when The Minor Planet Center in Cambridge, Mass., announced the discovery of an asteroid zooming close to Earth — only to learn it was actually a Tesla ...