Now, this is just something that has occured to me with people talking about how there should be "listening posts" on planets. Things like that. From what I have gathered about how the planet system works this time around, you're only given a certain number of tiles. That makes settling a crappy, 1-3 tile planet completely useless.
I would just like to see some possible uses for those. Since we have a limited number of tiles, it would make sense for a very useful planet (read, more tiles) to outsource non-economic/military things to our 1-3 planets, like a listening post. But where my subject line comes in, what about setting up possible dangerous research stations on a far out, useless planet. It could provide an increased amount of a research output that you otherwise wouldn't get, but you also run the risk of it blowing up, taking out itself, surrounding tiles, or even the planet.