Dark Matter
Dark matter is a form of matter thought to account for approximately 85% of the matter in the universe and about a quarter of its total energy density. Its presence is implied in a variety of astrophysical observations, including gravitational effects that cannot be explained by accepted theories of gravity unless more matter is present than can be seen.
| Links | https://en.wikipedia.org/wiki/Dark_matter |
About/Subject 7
 | Cosmic Coincidences: Dark Matter, Mankind, and Anthropic Cosmology | Trade Paperback |
 | Le Scienze (2016-01) | Magazine |
 | Le Scienze (2016-04) | Magazine |
 | BBC Science Focus (Christmas 2019: Special Issue) | Magazine |
 | Pimeän aineen arvoitus | e-Book |
 | Cosmo (n. 005) | Magazine |
 | Cosmo (n. 006) | Magazine |
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