astronomy

US /əˈstrɑː.nə.mi/
UK /əˈstrɑː.nə.mi/
"astronomy" picture
1.

天文学

the scientific study of stars, planets, and other objects in outer space

:
She is studying astronomy at the university.
她在大学学习天文学
Modern astronomy relies heavily on powerful telescopes.
现代天文学严重依赖强大的望远镜。