Testing the orbital mechanics of giant mirrors

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 as a preprint on arXiv, by Shauna Sallmen of th...