astrophysicist
A scientist who studies the physics of the universe, including celestial bodies and cosmic phenomena.
She studies black holes as an astrophysicist.
An astronomer focuses on observing and cataloging celestial objects, while an astrophysicist applies physics to understand their nature.
A broader term for a space scientist, which may include astrophysicists, planetary scientists, and others.
Compound of 宇宙 (uchū, 'universe') + 物理学 (butsurigaku, 'physics') + 者 (sha, 'person').