# If Space Expands,

**URL:** <https://boards.straightdope.com/t/if-space-expands/678379>\
**Category:** Factual Questions\
**Created:** [January 9, 2014, 6:29pm UTC](https://boards.straightdope.com/t/if-space-expands/678379 "2014-01-09T18:29:11Z")\
**Posts on this page:** 3\
**Page:** 2

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**Author:** ![Chronos](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chronos/32/134_2.png) [@Chronos](https://boards.straightdope.com/u/Chronos)\
**Post date:** [January 11, 2014, 6:32am UTC](https://boards.straightdope.com/t/if-space-expands/678379/21 "2014-01-11T06:32:37Z")

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**Isilder** , we _can_ show dark matter’s properties. It has a pressure equal in magnitude to its energy density, but opposite in sign. Unfortunately, that’s about all we can say about it. Yes, it’s a problem that we can say so little about something that’s apparently so abundant. Got any better suggestions?

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**Author:** ![Jake](https://avatars.discourse-cdn.com/v4/letter/j/f475e1/32.png) [@Jake](https://boards.straightdope.com/u/Jake)\
**Post date:** [January 11, 2014, 4:01pm UTC](https://boards.straightdope.com/t/if-space-expands/678379/22 "2014-01-11T16:01:42Z")

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Thanks all, for your well thought out and intelligent responses!  
Keep 'em coming!

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**Author:** ![KneadToKnow](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kneadtoknow/32/3999_2.png) [@KneadToKnow](https://boards.straightdope.com/u/KneadToKnow)\
**Post date:** [January 11, 2014, 4:24pm UTC](https://boards.straightdope.com/t/if-space-expands/678379/23 "2014-01-11T16:24:39Z")

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> [@Isilder](#):
>
> IMHO, dark energy is a fudge factor.

That reads like a 2-for-1 poop joke.

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