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Topic: How Astronomers Define Where a Galaxy Ends and Interstellar Space Begins (Read 11 times) previous topic - next topic

How Astronomers Define Where a Galaxy Ends and Interstellar Space Begins

How Astronomers Define Where a Galaxy Ends and Interstellar Space Begins

[html]Explore how star formation, gas density, and proximity to other galaxies define where a galaxy ends.[/html]

Source: How Astronomers Define Where a Galaxy Ends and Interstellar Space Begins (http://ht**://www.discovermagazine.c**/the-sciences/how-astronomers-define-where-a-galaxy-ends-and-interstellar-space-begins)