A new animation shows the orbits of hundreds of dwarf planets beyond Pluto.
The astronomer who compiled the data says it may only capture a small fraction of dwarf planets in the solar system.
A new definition of "planet" may recategorize many dwarf planets and moons as planets.
You may be familiar with our solar system's eight planets — Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. There's also their famous dwarf-planet companion, Pluto.
But this icy world may just be an appetizer to what lurks in a region beyond Pluto called the Kuiper Belt.
As this stunning animation suggests, dwarf planets may outnumber regular planets 100- or even 1,000-fold:
However, if a small group of astronomers gets its way, many of these worlds may become fully fledged planets and drop the "dwarf" label.
Where the animation comes from