# Neutron star material brough to earth - Why does it expand? **URL:** \ **Category:** Factual Questions\ **Created:** [June 6, 2011, 8:59am UTC](https://boards.straightdope.com/t/neutron-star-material-brough-to-earth-why-does-it-expand/584488 "2011-06-06T08:59:05Z")\ **Posts on this page:** 3\ **Page:** 2
**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:** [June 6, 2011, 10:31pm UTC](https://boards.straightdope.com/t/neutron-star-material-brough-to-earth-why-does-it-expand/584488/21 "2011-06-06T22:31:47Z")
No, **Lemur** , that’s dark matter you’re thinking of. 🙂 ---
**Author:** ![brocks](https://avatars.discourse-cdn.com/v4/letter/b/7feea3/32.png) [@brocks](https://boards.straightdope.com/u/brocks)\ **Post date:** [June 7, 2011, 1:55am UTC](https://boards.straightdope.com/t/neutron-star-material-brough-to-earth-why-does-it-expand/584488/22 "2011-06-07T01:55:44Z")
> [@Lemur866](#): > > A neutron star is so dense that a pound of it weighs more than a million pounds. No, but that’s what it costs on the London Exchange. ---
**Author:** ![user\_hostile](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/user_hostile/32/474_2.png) [@user\_hostile](https://boards.straightdope.com/u/user_hostile)\ **Post date:** [June 7, 2011, 2:25am UTC](https://boards.straightdope.com/t/neutron-star-material-brough-to-earth-why-does-it-expand/584488/23 "2011-06-07T02:25:35Z")
> [@Lemur866](#): > > A neutron star is so dense that a pound of it weighs more than a million pounds. And, amazingly enough, would weigh more than a pound of Gold! [Previous page](https://boards.straightdope.com/t/neutron-star-material-brough-to-earth-why-does-it-expand/584488.md?page=1)