Astronomy Definition & Meaning - Merriam-Webster
WEBThe meaning of ASTRONOMY is the study of objects and matter outside the earth's atmosphere and of their physical and chemical properties. The Difference Between Astronomy and Astrology.
Astronomy | Definition, History, Discoveries, & Facts | Britannica
WEBJul 26, 2024 · Astronomy is the study of objects and phenomena beyond Earth, whereas cosmology is a branch of astronomy that studies the origin of the universe and how it has evolved.
Astronomy - Wikipedia
WEBAstronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos. It uses mathematics, physics, and chemistry in order to explain their origin and their overall evolution. Objects of interest include planets, moons, stars, nebulae, galaxies, meteoroids, asteroids, and comets.
What is Astronomy? - AMNH
WEBAstronomy 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. It also includes objects we can only see with telescopes or other instruments, like faraway galaxies and tiny particles.
ASTRONOMY | English meaning - Cambridge Dictionary
WEBthe scientific study of the universe and of objects that exist naturally in space, such as the moon, the sun, planets, and stars. Examples. Unlike astronomy, astrology …
Astronomy: Everything you need to know | Space
WEBJul 25, 2023 · What is astronomy? Astronomy uses mathematics, physics and chemistry to study celestial objects and phenomena. What are the four types of astronomy? …
ASTRONOMY Definition & Meaning - Dictionary.com
WEBThe scientific study of the universe and the objects in it, including stars, planets, nebulae, and galaxies. Astronomy deals with the position, size, motion, composition, energy, and evolution of celestial objects.
What exactly is astronomy? - American Astronomical Society
WEBAstronomy is a physical science concerned with the smallest particles and the largest natural objects. The name Astronomy comes from the Greek roots Astr- and -nomia to literally mean "name stars".
What is Astronomy? | Department of Astronomy - Ohio State …
WEBWhat is Astronomy? Astronomy and Astrophysics is the study of planets, stars, galaxies, and the Universe as a whole. This includes how all of these originate and their evolution in time.
ASTRONOMY | definition in the Cambridge English Dictionary
WEBthe scientific study of the universe and of objects that exist naturally in space, such as the moon, the sun, planets, and stars. Examples. Unlike astronomy, astrology …