astronomy
nounfemininetécnico/ɐʃtɾunuˈmiɐ/medium
as·tro·no·mi·a
Definition
The science that studies celestial bodies (stars, planets, comets, galaxies) and phenomena that occur outside Earth's atmosphere.
Modern astronomy relies heavily on space telescopes.
He always had a passion for astronomy and spent nights observing the stars.
Common collocations
observational astronomytheoretical astronomystudy astronomy
Etymology
Do grego 'astronomía' (lei das estrelas), de 'ástron' (estrela) e 'nómos' (lei).