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Astronomy - Wikipedia
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. Objects of interest include planets, moons, stars, nebulae, galaxies, meteoroids, asteroids, and comets. Relevant phenomena include supernova explosions, gamma ray bursts, quasars, blazars ...

Astronomy Magazine: Space News, Observing, Planets, Galaxies
Astronomy.com is for anyone who wants to learn more about astronomy and space, including planets, galaxies, asteroids, and NASA.

NASA
NASA.gov brings you the latest news, images and videos from America's space agency, pioneering the future in space exploration, scientific discovery and aeronautics research.

Astronomy | Definition, History, Discoveries, & Facts | Britannica
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.

Astronomy: Everything you need to know | Space
Astronomy was born out of humankind's ancient fascination with the star-studded sky. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works ...

Astronomy - NASA
NASA Continues to Study Pulsars, 50 Years After Their Chance Discovery

Sky & Telescope | Your Guide to Astronomy & the Night Sky
Explore the universe with Sky & Telescope, your ultimate source for stargazing, celestial events, and the latest astronomy news. Subscribe for full access!

Astronomy for Beginners | Night Sky Facts, FAQs & Resources
Astronomy Facts: Building Your Background Even though you don't need to know the Greek names of the constellations or understand the nature of black holes in order to relish the night sky, you might want to anyway. We provide a rich supply of information and resources on astronomy for beginners.

Space.com: NASA, Space Exploration and Astronomy News
Get the latest space exploration, innovation and astronomy news. Space.com celebrates humanity's ongoing expansion across the final frontier.

Universe Today - Space and Astronomy News
Your daily source for space and astronomy news. Expert coverage of NASA missions, rocket launches, space exploration, exoplanets, and the latest discoveries in astrophysics.