We've spotted a planet surviving its dying star – here's what it tells us about end of our Solar System

How will the solar system die? It's a hugely important question that researchers have considered deeply, using our knowledge of physics to create complex theoretical models. We know that the sun will eventually become a "white dwarf", a burnt stellar remnant whose dim light gradually fades into darkness. This transformation will involve a violent process that will destroy an unknown number of its planets.