Mysterious Dwarf Planet 'Snow White' Much Bigger Than Thought: Study

A faraway object nicknamed "Snow White" is considerably larger than scientists had thought, and is in fact the third-largest dwarf planet in the solar system, a new study suggests. If the new measurement is accurate, the only known dwarf planets bigger than Snow White are Pluto and Eris, which are 1,475 miles (2,374 km) and 1,445 miles (2,236 km) across, respectively.