Giant mirrors in space have been a staple of science fiction for decades. But so far, there's been very little work looking ...

In theory, it could happen – one of the very first solutions to the three-body problem was this scenario. But it is very unlikely to be stable over time. You need the stars to have near equal mass and ...

For decades, engineers and planetary scientists have explored howorbital mirrors could be used to actively shape a planet’s ...

In the cold, dark outskirts of planetary systems far beyond the reach of the known planets, mysterious gas giants and planetary masses silently orbit their stars—sometimes thousands of astronomical ...