Grain-sized remnants of alien technology may get caught in solar wind and land on plants and moons close to us

The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new paper.

Our search for technosignatures – clear signs of advanced civilizations beyond Earth – takes many forms.

Grain-sized remnants of alien technology may get caught in solar wind and land on plants and moons close to us