Scientists: Downgraded Pluto not even biggest of dwarf planets
Astronomers have announced yet more bad news for the former planet Pluto.
Kicked out of the club of planets last year, and categorized as merely the biggest dwarf planet, it may now not even be that.
Scientists have discovered a 2,400-km-wide dwarf planet called Eris, which is bigger and heavier than Pluto.
Photo