Using Graphene to radiate heat from deep holes to the surface is also one other area being worked on. Graphene has exceptionally high thermal conductivity, 120

Using Graphene to radiate heat from deep holes to the surface is also one other area being worked on. Graphene has exceptionally high thermal conductivity, 12000x of copper: https://futurism.com/thanks-to-graphene-we-may-harness-the-limitless-energy-beneath-earths-surface https://futurism.com/thanks-to-graphene-we-may-harness-the-l...