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 evolution.

5 days ago · Astronomy.com is for anyone who wants to learn more about astronomy and space, including planets, galaxies, asteroids, and NASA.

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 …

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.

Explore the universe with Sky & Telescope - your ultimate source for stargazing, celestial events, and the latest astronomy news.

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 .

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

It studies the origins, evolution, and physical and chemical properties of celestial objects. In short, astronomy is about finding out what is going on beyond Earth.

Astronomy 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".

Dec 6, 2025 · Within this outreach kit, you will find in-depth information and ample resources to help you have a successful total solar eclipse viewing.