Galaxies: The Big Picture

Essentially everything we can see in the night sky — whether with the unaided eye or with telescopes — are galaxies, or parts of galaxies. When thinking about galaxies, we need to think BIG: a galaxy is an almost unfathomably large collection of dust, gas, dark matter, planets, and stars — billions of them, packed together by the force of gravity.


Dark Matter Large Collection 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science + Business Media, LLC 2009

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