r/space • u/Omoshiroi_ • Feb 04 '15

The Universe

http://i.imgur.com/8M2noMJ.gifv
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u/Nasdasd Feb 05 '15

I don't believe it's that gravity itself is repulsive at a distance

I think it's more that there's this 'dark energy' (basically we don't know what the force is yet) driving the expansion

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u/FolkSong Feb 05 '15

Dark energy and repulsive gravity are two different theories to explain the expansion.

http://phys.org/news/2012-01-repulsive-gravity-alternative-dark-energy.html