Astronomer
Context
A scientist who studies celestial bodies such as planets, stars, and galaxies
Explanation
Astronomers study the universe and its celestial bodies, including the motions, compositions, and processes of planets, stars, galaxies, and black holes, often using telescopes and other instruments.
Applications
The astronomer observed distant galaxies through a powerful telescope.
Astronomers use mathematical models to predict astronomical events.
The study of exoplanets is a growing field within astronomy.