A massive interstellar object hurtling through the solar system may be considerably larger than initial observations suggested, according to a new analysis. It could even have alien technology, ...

Could a comet’s tail pointing towards the Sun possibly indicate alien technology, or is it just a strange quirk of dust ...

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.