astronomy
astronomy — noun
1. the science that looks at what lies beyond Earth — including stars, planets, moo
the science that looks at what lies beyond Earth — including stars, planets, moons, galaxies, and the way the universe formed and changes over time.
Hadiya studied astronomy at university and now works at a planetarium in Tokyo.
study astronomy at + [institution]
Modern astronomy uses huge telescopes to see stars billions of miles from Earth.
modern astronomy + tools/instruments
Greta has been interested in astronomy since she watched a meteor shower as a child.
Ancient Egyptian priests used astronomy to predict the flooding of the Nile.
The school astronomy club gathers every Friday night to observe the rings of Saturn through their telescope.
- astrophysics
narrower; focuses on the physics and chemistry of space objects
- cosmology
narrower; specifically the origin and structure of the whole universe
- stargazing
informal; the hobby of looking at stars rather than the academic field
- astrology
often confused with astronomy but is a belief system, not a science
用法筆記
Uncountable noun: never 'an astronomy' or 'astronomies'. Distinguish from astrology, which is the non-scientific belief that stars influence human affairs.