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

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

Once small enough, these technograins might gain a trip out of its host solar system by a solar wind that overcomes the star's gravity holding it back. These motes of dust are then free to roam the ...

Scientists propose building a lab on the moon to screen Mars and other space samples for alien microbes before they ever ...