Exotic Thermodynamics is a technology on the Exploration and Expansion technology tree with a research cost of 14000 . It unlocks one Planet Improvement, requires research in Low-Temp Hydration or in Non-Baryonic Shielding, and allows further research in Negative Mass Mechanics and Complex Regulated Systems.
"Turning the concept of negative mass materials from theory to fact is a huge leap; exceedingly powerful drives and energy sources are now available as technology is developed that affects entropy itself."
"Terraforming a planet into a Tundra-type requires sophisticated manipulation of temperature and humidity on a planetary scale. This requires precise thermodynamic control and a great deal of energy, neither of which would be possible without the use of exotic matter."