Category
page 1Pluto's planethood
Eris
dwarf planet in the Solar System
Michael E. Brown
American planetary astronomer
planet beyond Neptune
any Solar System planet that might orbit the Sun beyond Neptune
IAU definition of planet
definition of a planet as a body orbiting the Sun, in hydrostatic equilibrium, having cleared the neighborhood around its orbit; ratified by the IAU in August 2006, thereby reclassifying Pluto as a dwarf planet instead
clearing the neighbourhood
criterion for a celestial body to be considered a planet
Alan Stern
American planetary scientist
How I Killed Pluto and Why It Had It Coming
2010 memoir by Michael E. Brown
Something Ricked This Way Comes
episode of Rick and Morty (S1 E9)
The Pluto Files
book by Neil deGrasse Tyson