astrophysics

== English == === Etymology === From astro- +‎ physics. === Pronunciation === IPA(key): /ˌæs.tɹoʊˈfɪz.ɪks/, /ˌæs.tɹəˈfɪz.ɪks/ === Noun === astrophysics (uncountable) The branch of astronomy or physics that deals with the physical properties of celestial bodies and with the interaction between matter and radiation in celestial bodies and in the space between them. ==== Derived terms ==== ==== Translations ==== === See also ===