White dwarfs represent the final stage in the lives of stars with Sun-like masses, but stars with around eight times the mass of
DEAD STARS ARE STILL SHAKING
Planet Nine’s Place
Planet Nine is said to be about five or six times the mass of Earth. If proven to exist, it would be the fifth-largest planet in the Solar System, dwarfing Pluto and the planets of the inner Solar System but not quite as large as Jupiter, Saturn, Ura
