White Dwarfs are Often Polluted With Heavier Elements. Now We Know Why https://www.universetoday.com/166877/white-dwarfs-are-often-polluted-with-heavier-elements-now-we-know-why/ #stellarcomposition #stellarevolution #stellarremnants #planetesimals #solarsystem #whitedwarfs #whitedwarf #astronomy #featured