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2. Nuclear power in space - Wikipedia

   en.wikipedia.org/wiki/Nuclear_power_in_space

   After the ban of nuclear weapons in space by the Outer Space Treaty in 1967, nuclear power has been discussed at least since 1972 as a sensitive issue by states. [8] Space nuclear power sources may experience accidents during launch, operation, and end-of-service phases, resulting in the exposure of nuclear power sources to extreme physical conditions and the release of radioactive materials ...

3. List of nuclear power systems in space - Wikipedia

   en.wikipedia.org/wiki/List_of_nuclear_power...

   This list of nuclear power systems in space includes 83 nuclear power systems that were flown to space, or at least launched in an attempt to reach space. Such used nuclear power systems include: Such used nuclear power systems include:

4. Thorium-based nuclear power - Wikipedia

   en.wikipedia.org/wiki/Thorium-based_nuclear_power

   A sample of thorium. Thorium-based nuclear power generation is fueled primarily by the nuclear fission of the isotope uranium-233 produced from the fertile element thorium.A thorium fuel cycle can offer several potential advantages over a uranium fuel cycle [Note 1] —including the much greater abundance of thorium found on Earth, superior physical and nuclear fuel properties, and reduced ...

5. Safe affordable fission engine - Wikipedia

   en.wikipedia.org/wiki/Safe_Affordable_Fission_Engine

   SAFE-30 small experimental reactor. Safe affordable fission engine (SAFE) were NASA's small experimental nuclear fission reactors for electricity production in space. [1] Most known was the SAFE-400 reactor concept intended to produce 400 kW thermal and 100 kW electrical using a Brayton cycle closed-cycle gas turbine. [2]

6. Nuclear fission - Wikipedia

   en.wikipedia.org/wiki/Nuclear_fission

   U nucleus has an excitation energy below the critical fission energy." [4]: 25–28 [5]: 282–287 [10] [11] About 6 MeV of the fission-input energy is supplied by the simple binding of an extra neutron to the heavy nucleus via the strong force; however, in many fissionable isotopes, this amount of energy is not enough for fission.

7. Lockheed Martin Compact Fusion Reactor - Wikipedia

   en.wikipedia.org/wiki/Lockheed_Martin_Compact...

   The Lockheed Martin Compact Fusion Reactor (CFR) was a fusion power project at Lockheed Martin’s Skunk Works. [1] Its high-beta configuration, which implies that the ratio of plasma pressure to magnetic pressure is greater than or equal to 1 (compared to tokamak designs' 0.05), allows a compact design and expedited development.