Astronomy (from the Greek ἀστρονομία from ἄστρον astron, "star" and -νομία -nomia from νόμος nomos, "law" or "culture") means "law of the stars" (or "culture of the stars" depending on the translation).

2025年2月25日 · Astronomy, science that encompasses the study of all extraterrestrial objects and phenomena. Since the late 19th century, astronomy has expanded to include astrophysics, the application of physical and chemical knowledge to an …

6 天之前 · Astronomy.com is for anyone who wants to learn more about astronomy events, cosmology, planets, galaxies, asteroids, astrophotography, the Big Bang, black holes ...

A different astronomy and space science related image is featured each day, along with a brief explanation.

2023年7月25日 · Astronomy was born out of humankind's ancient fascination with the star-studded sky.

Astronomy is the study of everything in the universe beyond Earth’s atmosphere. That includes objects we can see with our naked eyes, like the Sun, the Moon, the planets, and the stars.

2024年12月19日 · Nature Astronomy is a truly multidisciplinary journal for the field, representing — and fostering closer interaction between — all of the key ...