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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. Nuclear salt-water rocket - Wikipedia

   en.wikipedia.org/wiki/Nuclear_salt-water_rocket

   However, if the use of NSWR began to rise, it would be possible to replace this with the cheaper isotopes 233 U or 239 Pu in either fission breeder reactors or (much better) nuclear fusion–fission hybrid reactors. These other fissiles would have the right characteristics to serve nearly as well, at a relatively low cost. [1] [8]

5. Cosmic ray spallation - Wikipedia

   en.wikipedia.org/wiki/Cosmic_ray_spallation

   In contrast, the radioactive nuclide beryllium-7 falls into the same light element range but has a half-life too short for it to have been formed before the formation of the Solar System, so that it cannot be a primordial nuclide. Since the cosmic ray spallation route is the most likely source of beryllium-7 in the environment, that isotope is ...

6. Theoretical spacecraft propulsion - Wikipedia

   en.wikipedia.org/wiki/Theoretical_spacecraft...

   The fission sail is a type of spacecraft propulsion proposed by Robert Forward that uses fission fragments to propel a large solar sail-like craft. It is similar in concept to the fission-fragment rocket in that the fission by-products are directly harnessed as working mass , and differs primarily in the way that the fragments are used for thrust.

7. Kilopower - Wikipedia

   en.wikipedia.org/wiki/Kilopower

   Kilopower is an experimental U.S. project to make new nuclear reactors for space travel. [1] [2] The project started in October 2015, led by NASA and the DoE’s National Nuclear Security Administration (NNSA). [3]