I would finish by telling you that there is also a chapter to create the exotic animals, planets of the characters & non-players, and one very interesting part on the government of planets and the commercial exchanges.
Voilà, I hope that you have one new view on Space Opéra and that you realized that this is not a game of " close to 200 indigestible pages, succeeding in accumulating one, quantity incredible of formulas doubtful mathematics, of modifiers, tragi-comic and of rules supposedly realistic " (Casus Belli n° 44) nor a game "of a primary anti-communism, to the too shady rules, too much disparate, without true system of game, confining it in the reverence of some insiders " (Casus Belli n° 49, decidedly they make very strong [arguments]... Besides I would like that one shows me a secondary Communist, but that its wealth permits the players to pass from Star Wars to Star Trek without difficulty and without complexity, say master-thinkers of it.
NdA: for those that would be completely floppy in physics (thanks to Space Opera I made progress since), I recall that 1 G represents the value of the terrestrial gravity field. It is thanks to this last idea that one glues to the Earth like a bug on the paper swatter and that Newton collected himself an apple on the head. At 0.5 Gs your weight will be divided by 2 and you will have the impression of being shot [drunk?], on the other hand with 2 Gs, you will have the impression of carrying all misfortunes of the world on the back because your weight will be doubled.
The abbreviation Hg mm means millimeter of mercury. This notation is used for measures of pressure with the help of a barometer with mercury. To give you an idea, the pressure at sea level is 760 Hgs mms. It is weaker in high altitude (always because of the gravity) and when the time spoils (where the name of depression comes from).