Build your own solar system:
http://www.newscientistspace.com/article.ns?id=dn9484
"Mini solar system could reveal hidden dimensions
The 'solar system in a can' would reside in a space craft 'parked' at
the L2 Lagrange point (Image: NASA) 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."
