<PERSON>. Slower escape speed among the 4 gaseous giants of the Solar System. Attractive feature: helium-3 and deuterium to produce semi-aneutron fusion The energy density of this fusion is on the order of 353 trillion joules per kg. . The deuterium-helium-3 fusion produces 24% of the X-ray energy '' 20% '' and 4% in neutrons, leaving 76% of the 353 trillion joules in charged particles that can be used directly for direct conversion to energy by eliminating the steam turbine method and opening the opportunity for a more efficient conversion medium that can conservatively reach 88%, and propulsion with that kind of melting speed. Up to 7.72% of the speed of light is possible, considering only the energy density of the 76% of charged particles, if it is possible to use 100% directly for exhaustion. Thinking only about helium-3 contains a known average of 2 hydrogen and helium earth masses if we consider that 30% is helium so that Uranus has 60% of a helium earth mass, considering the abundance of the Primordial Nebula, which for every million of parts of helium 100 is helium-3, and while helium-3 has a mass of 75% helium-4, there are a total of 268,650,000,000,000,000 quadrillion tons of helium-3 in total Uranus or 268, 65 x 10 ^ 17 tons of helium-3. equivalent to 206.65 billion times the helium-3 reserves in the lunar regolith if we consider that there is a total of 1.3 million tons of helium-3 in the moon's regolith. 150
Unlike Saturn or Jupiter, Uranus concentrates its helium in the upper layers, the interior of the planet is rich in volatiles of water ice and methane, which in turn comprise a fraction of hydrogen that, for water ice, It is on the order of 11.2%, perhaps this total ice down below will add 1.1 mass of hydrogen from the earth with the remaining oxygen and carbon-forming methane when combined with hydrogen. On Jupiter and Saturn, helium is well distributed in the layers of the two planets. If we are discussing a potential civilization that artificially controls nuclear fusion in reactors and is capable of using it for propulsion and power generation, then we are talking about a post-scarcity civilization that would not be tied to the fate of its parent star either. one day it will come out, so gas giants or ice giants like URANO or Neptune are true reserves of mega fuel fusion for these civilizations, even considering only deuterium + helium-3 or deuterium - deuterium catalysed by + deuterium '' creation of deuterium '' 'or the completely aneutronic fusion of helium-3 + helium-3. So the only really valuable resource here is helium-3 and deuterium, as long as your civilization already has the domain of exponential gain artificial nuclear fusion. Yet only when all other sources of deuterium have been depleted because for each KM³ of water ice in other bodies of the Solar System in the rocky case there can be 34,900 tonnes of potential deuterium that can be used for catalyzed deuterium fusion and also to produce helium-3 as it fuses from the DD fusion. There are no other resources that are valuable enough in the Solar System to extract from our Gaseous Giants except deuterium and helium-3, and as for the core of these planets to be filled with valuable metals, it is much easier 16 Psyche. Civilization could use the same pattern to extract helium-3 from brown dwarfs that have already depleted their deuterium supply but lack sufficient power to deplete helium-3, so they would choose brown dwarfs cold enough to provide access to atmospheric mining to Helium-3 + helium-3 fusion has an energy density per KG on the order of 207.5 trillion joules per KG that's well below the deuterium + helium-3 fusion but it is worth remembering that the helium-3 + helium-3 fusion is 100% aneutronic and potentially produces only half of the x-ray produced by the deuterium - helium-3 fusion. 99