The leader of the Pentagon’s UFO identification office, who recently speculated about the potential for an alien “mothership ... with concern that advanced Chinese surveillance technologies ...

"Iran launched a mothership ... its thermal cameras didn't pick anything up. The drone could have been carrying an advanced new technology that allows them to anticipate and evade police detection ...

Are there any advanced alien civilizations elsewhere in our galaxy? We don't know. All we do know is that there is at least one. Should we be optimistic or pessimistic about finding others?

Don’t bother wondering if alien civilizations can hear our radio broadcasts or not. According to a new study, sufficiently advanced aliens can already see us. The research, set to be published ...

Astronomers say this could be evidence for alien civilisations harnessing energy from their stars by using a vast construction known as a Dyson sphere – although they can’t fully rule out more ...

So, isn't it possible that an advanced, energy-guzzling alien society might run into the same issues? According to astrophysicist Adam Frank, it's not only possible but extremely likely.

Could there be a technologically advanced extraterrestrial society ... Astronomers have long wondered why we haven't yet encountered alien civilizations even though humanity is young and our ...

If advanced alien civilisations are building vast satellite swarms designed to harvest a star’s energy, we should be able to see them – so why haven’t we? One answer might be that these ...