Brane theory provides an interesting explanation for this force

Jul 2, 2012 09:53 GMT  ·  By
Our Universe may be separated from the next by a membrane just 1 millimeter thick
   Our Universe may be separated from the next by a membrane just 1 millimeter thick

Astrophysicists have a hard time understanding dark energy, the force driving the ever-accelerating expansion of the Cosmos. Countless theories have been proposed to explain its nature, and one is particularly groundbreaking – dark energy is caused by the interaction with another Universe.

In brane cosmology, our Universe is not the only one out there. In fact, an infinity of Universes may exist, all of which interact with each other at the boundaries, but are clearly separated by membranes. The theory holds that the layer separating two Universes may be as thin as 1 millimeter.

Due to the thinness of the membrane, forces such as gravity may be leaking from one Universe to the other. If our Cosmos is located next to a particularly large Universe, then the gravitational influence the latter exerts through the membrane could account for dark energy.

However, testing such an idea is well beyond our current technological and scientific means. I find this concept to be very interesting, but without foundation in reality. At this point, we don't even know whether dark energy exists at all, Daily Galaxy reports.