![[Aggregator] Downloaded image for imported item #64983](https://astrobitica.com/wp-content/uploads/2026/06/Advanced_Composite_Solar_Sail_System_Artists_Concept_3_ACS3_SolarSailSunrise_20260622_155507.png)
Giant mirrors in space have been a key idea in science fiction, but there has been little research on the physics of the concept. A new paper by Shauna Sallmen and Eric Korpela focuses on understanding what to look for in these mirrors, which could potentially serve as a passive technosignature.
Giant mirrors in space have been a staple of science fiction for decades. But so far there’s been very little work looking at the actual physics behind the concept – possibly because we’re still so far from making them ourselves. Still, they could potentially serve as a passive technosignature, if we manage to find one. In order to do that, though, we have to understand what we’re looking for. That is the purpose of a new paper, available in pre-print on arXiv, by Shauna Sallmen of the University of Wisconsin – LaCrosse, and Eric Korpela of UC Berkeley.
About the Author
