Pulverised technology from collapsed alien civilisations may lie scattered across the solar system, including on the Moon, a new study suggests.
The likelihood of advanced aliens living at the same time as humans is small due to the vastness of the universe, but there’s a chance we may stumble upon the ruins of an extinct extraterrestrial civilisation, Oxford astrophysicist Brian Lacki argues.
Ongoing attempts at finding aliens focus heavily on detecting “active” signals from beyond the solar system such as radio waves. But, Dr Lacki notes, even humans started sending radio signals into the vastness of space only in the last century or so. To find advanced aliens, therefore, it may be a better strategy to look for "passive" signs of their technology, such as relics that last for billions of years, he argues in a yet-to-be peer-reviewed paper posted in arXiv.
To read more, click here.