I was wondering if dark energy might actually be gravitational potential energy.(adsbygoogle = window.adsbygoogle || []).push({});

If one assumes that space is flat and that the Universe is approximately a sphere with mass M and the Hubble radius R then we find that we have the approximate relation:

[itex] \frac{G M }{R} = c^2 [/itex]

A mass m at the center of the sphere would have approximate gravitational potential energy

[itex] PE = - \frac{G M m}{R} = - m c^2 [/itex]

This potential energy would have a gravitational repulsion that might counteract the gravitational attraction due to mass m causing the Universal expansion to accelerate.

I would be interested to hear what you think of this line of thought.

**Physics Forums - The Fusion of Science and Community**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Could dark energy be gravitational potential energy?

Tags:

Loading...

Similar Threads - dark energy gravitational | Date |
---|---|

I Is dark energy the inflow of a universal black hole? | Today at 10:35 AM |

I Dark energy and the gravitational constant | Mar 15, 2016 |

Gravitational lensing and Dark Energy | Sep 10, 2015 |

Dark Energy as Gravitational Tidal forces? | Jan 18, 2014 |

Could dark energy simply be gravitational field energy? | Oct 31, 2011 |

**Physics Forums - The Fusion of Science and Community**