Jackpot planets are planets setup by players who have typically have an excess of plans usually glyph building plans that have been obtained most commonly through the use of Excavator spamming. The idea of these colonies is to share out piles of excess plans that otherwise have little use to the owners empire, but could be of use to less developed empires.
The malcud field is a natural swampy area that forms on a planet and produces a natural source of the malcud fungus.
Volcanos naturally form on many planets. As they erupt they bring a steady source of ore from the planet's core up to the surface. The production of a Volcano can be boosted by an Ore Refinery.