For your reading pleasure: a totally frivolous post based off musing I've been doing when I actually have time to sit down and watch TV.
Recently I've been on a scifi kick (and got sucked into watching episodes of Stargate: Universe online, which is a great way to see a whole series but a massive free-time sink). Interpersonal issues aside, the characters on SGU, who are stuck on an alien spaceship on the other side of the universe, spend a lot of time visiting new planets, looking for resources like food and water. Sometimes the main barrier to this is an alien critter that doesn't like them much, but often they end up on deserted planets with little more than a "well, you can breathe and it's not too cold" from the probes they send through first.
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