Question: In total, how many moons are there in our solar system?
Answer: Adding up all the moons from each planet and dwarf-plant in our solar system, the current total comes to over 150 known moons.
Every planet except Mercury and Venus has at least one moon, the gas giant Jupiter officially has the most with 63.
Not all moons are sphere shaped though, only the larger ones. If an object in space doesn’t have enough mass and therefore not enough gravity, it will only tend to form random, irregular shapes. An example of this is Mars moon, Phobos (above).
The process where larger planets and moons from a sphere shape by pulling it’s mass as close to its core as possible is known as isostatic adjustment.