Astronaut: A specific term for a person trained to travel and work in space.
Anthropologist: A person who studies human societies, cultures, and their development, including physical characteristics, social practices, and cultural evolution.
Alchemist: A person who practices alchemy, an ancient philosophy and speculative science aimed at transforming base metals into gold, discovering the elixir of life, or achieving ultimate wisdom.
Curator: A person responsible for organizing and managing a collection, often in museums, galleries, or libraries, including acquiring, preserving, and displaying artifacts or works of art.