Twisted Sifter on MSN1 个月
What Exactly Are Dwarf Planets And How Many Of Them Are There?
Nobody was using the term Dwarf Planet until 2006 when the International Astronomical Union (IAU) had a vote to redefine what ...
BBC5 年
Public asked to help name minor planet discovered in 2007
Astronomers have asked the public to help name a minor planet in our Solar System discovered in 2007. The dwarf planet, which orbits the sun beyond Neptune, has since been referred to as (225088 ...