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Milky Way Galaxy | Size, Definition, & Facts | Britannica
Galactic Center - Wikipedia
Milky Way - Simple English Wikipedia, the free encyclopedia
The Milky Way Galaxy - Center for Astrophysics
What is the Milky Way? It’s our home galaxy - EarthSky
网页2024年1月1日 · Learn about the history, myths and science of the Milky Way, the galaxy we live in. See stunning photos of the starry band across the sky and the spiral arms of our galaxy.
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The Milky Way Galaxy - NASA Science
Milky Way galaxy: Facts about our cosmic …
网页2023年4月18日 · The Milky Way galaxy is our cosmic home. A barred spiral galaxy stretching 100,000 light-years across. Here we explore our galactic neighborhood in more detail.
NASA’s Webb Reveals New Features in Heart of Milky Way
Milky Way Galaxy - Structure, Dynamics, Stars | Britannica
网页5 天之前 · Milky Way Galaxy - Structure, Dynamics, Stars: The first reliable measurement of the size of the Galaxy was made in 1917 by American astronomer Harlow Shapley. He arrived at his size determination by …