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Astronomy 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.
Astronomy.com is for anyone who wants to learn more about astronomy and space, including planets, galaxies, asteroids, and NASA.
3 days ago · 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 understanding of the nature of celestial objects.
Jul 25, 2023 · Astronomy is one of the oldest scientific disciplines that has evolved from the humble beginnings of counting stars and charting constellations with the naked eye to the impressive showcase...
Sky & Telescope covers the latest night-sky events, astronomy news, astrophotography and observing tips. Learn more with our tools, videos, and podcasts.
The best guide to astronomy for beginners is the night sky. All you really need to do to get started is look up — preferably at night! You'll find an amazing treasure chest of astronomical wonders, even if you don't have a telescope.
2 days ago · Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
Feb 9, 2015 · Space. A new image reveals magnetic fields around our galaxy’s central black hole. Astronomers have captured polarized light coming from the Milky Way’s central supermassive black hole, giving...
Apr 22, 2024 · Explore the origin and evolution of the galaxies, stars and planets that make up our universe. Are we alone? Discover and study planets around other stars, and explore whether they could harbor life. Decadal Survey on Astronomy and Astrophysics 2020 (Astro2020)
The solar system has one star, eight planets, five dwarf planets, at least 290 moons, more than 1.3 million asteroids, and about 3,900 comets.
