← Back to context Comment by mrweasel 3 hours ago That would be fun on a space craft. Steam power spacecraft, powered by burning mushrooms. 2 comments mrweasel Reply friendzis 1 hour ago Humans become interstellar species.Energy source is still heated water. ethmarks 3 hours ago And the mushrooms would be powered by cosmic radiation...
Humans become interstellar species.
Energy source is still heated water.
And the mushrooms would be powered by cosmic radiation...