Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos. It uses mathematics, physics, and chemistry to explain their origin and their overall …

Dec 19, 2025 · Astronomy, science that encompasses the study of all extraterrestrial objects and phenomena. Since the late 19th century, astronomy has expanded to include astrophysics, the …

Dec 11, 2025 · Astronomy.com is for anyone who wants to learn more about astronomy and space, including planets, galaxies, asteroids, and NASA.

Ever look up at the night sky and wonder what you're looking at? Find out how you can learn more about astronomy — and what's up there tonight. Did the astronomy bug bite you while you …

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 .

Astronomy is a branch of science that researches everything in the universe beyond our Earth's atmosphere. This includes things like other planets in our solar system, moons, stars, and …

3 days ago · Stay updated with the latest astronomy news and space exploration discoveries. Explore breakthroughs in cosmology, exoplanets, telescopes, and space missions.

Jul 25, 2023 · Astronomy is one of the oldest scientific disciplines. Explore what it is and how it's shaped our understanding of the world around us in our ultimate guide.

May 6, 2025 · Astronomy is the study of the universe, starting with stargazing and observing celestial bodies. Professional astronomers study stars, planets, and galaxies to understand the …

Astronomy is the scientific study of celestial objects (such as stars, planets, comets, nebulae, star clusters and galaxies) and phenomena that originate outside the Earth’s atmosphere (such as …