Sentence examples for alien civilisations from inspiring English sources

There are plenty of heavenly objects that can be confused with the broadcasts of alien civilisations.

But maybe the silence is simply because no such alien civilisations exist.

Reynolds grew up in a town that sounds almost like one of his ruined alien civilisations.

He's busy assembling a video to warn alien civilisations that they mustn't repeat the errors of the Earthlings.

Researchers from Edinburgh University have said 'self replicating' robotic space probes from alien civilisations could already have arrived in our solar system.

Based on the latest discoveries of star-orbiting planets, Dr Aderin-Pocock believes there could be as many as four intelligent alien civilisations in existence in our galaxy.

Has there ever been a more richly invented alien civilisation?

The phone is proof of visits from an alien civilisation, some say.

He thinks contact with an alien civilisation could happen within decades.

He wanted to know how his alien civilisation might feasibly have created a useable time machine.

If an alien civilisation tried to match sounds to their objects, life on Earth can look very strange.