Topic: Mini solar system could reveal hidden dimensions

[Nemesis]

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A tiny, artificial solar system could reveal hidden spatial dimensions and test alternative theories of gravity, a new study suggests. If the system's "planets" moved slightly differently than expected from standard gravity, it would signal the presence of new physical phenomena – which have proven very difficult to test.

Numerous theories that attempt to unify all the forces of physics into one cohesive model call for hidden spatial dimensions in addition to the three we can sense. In some of these theories, gravity would leak into the extra dimensions – explaining why it is a relatively weak force in the universe we know. 

This artificial system would reside inside a spacecraft that would be sent to the L2 Lagrange point (see image, below right). That point lies about four times as far away from Earth as the Moon does.