I am an astrophysicist who researches the contents of planetary systems (including our own) in a wide variety of contexts, across both time and space. I have published academic articles about forming, destroying and evolving planets, asteroids, moons and comets while they interact with their parent star or stars.
My most significant current research focus is on the future and fate of extrasolar asteroids, comets, moons and planets: how they traverse the violent giant branch stellar evolution phases and "pollute" these stars after they become "white dwarfs". The Sun will become a giant branch star and then white dwarf, and might very well be polluted by asteroids, comets or even planets such as the Earth!