astrophysics

/ˌˈæstroʊˌfɪzɪks/

/æstrəʊˈfɪzɪks/

Astrophysics is the study of stars and other objects in space, and the way they move and change over time. If you're fascinated with black holes, you may want to go into astrophysics.

Complicated subjects like galaxy formation, the possibility of time travel, and the way the solar system has evolved are all included in the branch of astronomy known as astrophysics. When you study astrophysics, you apply the concepts and theories of physics to astronomic observations. Astrophysicist came first, from the Greek aster, or "star," and ta physika, "the natural things," or "natural science."

Definitions of astrophysics

1. noun

   the branch of astronomy concerned with the physical and chemical properties of celestial bodies
   types:

   cosmogeny, cosmogony, cosmology

   the branch of astrophysics that studies the origin and evolution and structure of the universe

   type of:

   astronomy, uranology

   the branch of physics that studies celestial bodies and the universe as a whole