Oh yea, and drop that whole "all the planets orbiting one sun" nonsense since it isn't workable. Miranda would have been frozen ice-ball _or_ the "inner planets" would be molten slag.
It was their way dealing with the issue of no FTL travel. And a rather good one at that. Partly terraformed planets led to the many barren landscapes they visited, and they could get to another planet/moon within a reasonable amount of time (ie, before they run out of food and water).
Gold has emerged over thousands of years a good medium of exchange due to many people wanting something they could trade easily for other goods. Gold fit the bill. It may happen that we find another object in the future that meets people's demands for money even better than gold, in which case we would probably see the price of gold go way down and this other element increase in price until it found a relatively stable value compared to the people's demand for it.
Tell me again how nuking thousands of civilians is justified here?
I have no problem with defense. If someone attacks, by all means fight back. But when you retaliate a sneak attack on a military base with an attack that causes more than 100x as many deaths, many of them civilians, then you've overstepped your right. That's a criminal act.
Also, I'm pretty* sure it wasn't a Trident missile that was used.