[Tomgs]

On a related note if you have a race that breathes "none" and you launch them into space shouldn't they still be there later?

Also if you repopulate a rioting world with new colonists aren't they still rioting? I haven't tried this with rioting worlds but on unhappy worlds even if I exchange the whole population (because of the atmosphere usually) they are still unhappy. And If I take "unhappy" colonists and put them on a new world they are "jubilent" so I think its a world setting and not the colonists themselves that are rioting.