What would the universe look like without dark matter?

Ranku · Mar 31, 2019

How different would the universe look without dark matter? Would galaxies have formed, allowing for the existence of the solar system and life?

Orodruin · Mar 31, 2019

It is not sufficient to just say "without dark matter" because that does not specify what other things (if anything) you put into the Universe instead.

Ranku · Mar 31, 2019

Orodruin said:

It is not sufficient to just say "without dark matter" because that does not specify what other things (if anything) you put into the Universe instead.

With only visible matter, radiation, and cosmological constant present.

Orodruin · Mar 31, 2019

Ranku said:

With only visible matter, radiation, and cosmological constant present.

Still not sufficient. You need to specify proportions.

Ranku · Apr 1, 2019

Orodruin said:

Still not sufficient. You need to specify proportions.

I guess the present proportion would be visible matter 5 % and dark energy 95 %.

Arman777 · Apr 4, 2019

Ranku said:

I guess the present proportion would be visible matter 5 % and dark energy 95 %.

You can try this one http://www.astro.ucla.edu/~wright/CosmoCalc.html

What would the universe look like without dark matter?

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What would the universe look like without dark matter?

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