E.T. could be phoning home — but we’re not hearing the call. A new study published in The Astrophysical Journal argues that “space weather” could be distorting incoming transmissions from ...

A strange interstellar object is hurtling its way toward our pale blue dot — and according to a Harvard astronomer, there's a chance it's not a benign asteroid or comet, but instead some harmful form ...

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.

Assuming intelligent aliens know how to harvest energy from stars, would humanity be able to spot these high-level structures?

Anytime anything even remotely unusual happens in space, you can bet that there will be people who say that it must be aliens. Usually, these are regular people who happen to enjoy alien conspiracies, ...

Some people will look at this thing and go: “It’s a comet.” Others will look at it and go: “It’s alien technology.” According to ScienceAlert, it was July 1 when astronomers clocked a strange, ...