Trivia: What dwarf planet was almost named the “10th planet” in our solar system?
Phobos
Pandora
Eris
Ganymede
The correct answer is Eris
So why is this answer correct? : Named after the Greek goddess of chaos, Eris was discovered in 2005. Upon its discovery, this icy rock divided the space community: Is it the 10th planet or not? Because it is larger than Pluto, some wanted Eris to be named the 10th planet, while others didn’t believe that either celestial body qualified. Ultimately, Pluto was stripped of its “planet” designation in 2006, and both Pluto and Eris are now referred to as “dwarf planets.”