A Geologist, Exogeologist, Theoretical Planetologist, and perhaps also an Astronomer
a person who studies people but not an psychologist
a mathematician
caladarian
A cardiologist.
demographist
a person who studies planets is a planetologist.
An astronomer.
A person who studies the planets and stars is an astrologist.
An astronomer.
astronomist
A person who studies planets and galaxies is called an astronomer. Astronomers observe and analyze celestial bodies such as planets, stars, and galaxies to understand their composition, behavior, and evolution. They use telescopes and other instruments to gather data and make scientific discoveries about the universe.
a person who studies people but not an psychologist
A person who studies genealogies is a genealogist.
A person who studies organisms is called a biologist.
a person that studies gems is called a gemologist.
what do you call somebody who studies snails.
A person who studies poisons is called a toxicologist.