Why an advanced alien civilisation really COULD wipe us out: Scientists identify two possible exoplanets where extraterrestrials may have had a five billion year head start on life on Earth

If aliens do exist, one of the chief concerns is that they could be far more advanced than us — and a lot less friendly. …

Why an advanced alien civilisation really COULD wipe us out: Scientists identify two possible exoplanets where extraterrestrials may have had a five billion year head start on life on Earth Read More