The Moon phases are entertaining and useful for calendar building, but watching the same full Moon/new Moon routine gets boring after a few thousands of years. Besides, one Moon does not provide nearly enough solar eclipses for everyone to enjoy at least 5 or 10 times per lifetime.
So, why not build one more moon? Mr. Bigelow has made an amazing progress with expandable modules, we could use those as a starting point (and hollow Moon-2 would not wreck the tidal patterns).
A few benefits:
- global fun watching the new extra moon
- figuring out the pattern of _two_ moons would be helpful for preventing Alzheimer's disease
- more frequent solar eclipses (I guess it falls under "fun", though)
- if our civilization collapses, the next one might evolve faster, having more complex pattern to think about
- subsequent civilizations would consider us gods-- xipetotec, Aug 31 2007 Just as you now revere the Romans, Greeks, Aztecs and Mayans?-- normzone, Aug 31 2007 Well, they didn't make moons, so...
Actually, speaking of Mayas, they did have quite a convoluted calendar based on _two_ cycles... OMG SOMEBODY HAD STOLEN THE SECOND MOON!-- xipetotec, Aug 31 2007 The extra moon would have a hard time to stay in a reasonable orbit under the influence of the current, much heavier, earth/moon/sun system. The only place you could put it would be one of the stable Lagrange Points. It would still bounce around a bit.-- kbecker, Sep 01 2007 Please could it be made from green cheese?-- the dog's breakfast, Sep 01 2007 Thanks [Anathema Device] you saved me the trouble of putting in a harsh anno, then again I would think and actually do think that every sunrise is pretty damn magical.-- zeno, Sep 01 2007 random, halfbakery