astrophysics
astrophysics — noun
1. the study of stars, planets, galaxies, and similar bodies beyond Earth by using
the study of stars, planets, galaxies, and similar bodies beyond Earth by using physics to explain how they form, move, and change
At university, Bilal chose astrophysics because he loved studying black holes.
choose astrophysics at university
Naoko reads astrophysics papers about how planets form around young stars.
astrophysics papers
The museum's new show makes astrophysics easier for children to understand.
Christopher began studying astrophysics after seeing Saturn through a school telescope.
Astrophysics helps scientists explain why some stars suddenly become brighter.
- astronomy
broader field that includes observing and describing space, not only explaining it with physics
- cosmology
narrower field focused on the origin and structure of the universe as a whole
- space science
broader practical label that can include satellites and space missions as well as theory
用法筆記
Usually uncountable and used for the subject itself: say study astrophysics or an astrophysics class. Astronomy is broader, while astrophysics focuses on explaining space with physics.