astrophysics
noun/ˈæstroʊˌfɪzɪks/
Frequency rank: #13,134 most common English word
Meaning
the branch of astronomy that applies the laws of physics and chemistry to explain the nature and behavior of celestial objects.

Example sentence
She decided to study astrophysics because she was fascinated by the physics of stars and galaxies.
Synonyms & related words
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