When.com Web Search

Search results

1. Results From The WOW.Com Content Network

2. 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.

3. 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 ...

4. Nuclear Fission Has Been Damn Near Impossible to Find ... - AOL

   www.aol.com/lifestyle/nuclear-fission-damn-near...

   This fission occurs when atomic nuclei grab free neutrons and form heavy, but unstable, elements. When it comes to nuclear energy , human engineering and the rest of the universe are a bit at odds.

5. Nuclear salt-water rocket - Wikipedia

   en.wikipedia.org/wiki/Nuclear_salt-water_rocket

   The fission reaction in an NSWR is dynamic, and because the reaction products are exhausted into space, it does not have a limit on the proportion of fission fuel that reacts. In many ways, NSWRs combine the advantages of fission reactors and fission bombs. [1]

6. Kilopower - Wikipedia

   en.wikipedia.org/wiki/Kilopower

   The reactor is intended to be launched cold, preventing the formation of highly radioactive fission products. Once the reactor reaches its destination, the neutron absorbing boron rod is removed to allow the nuclear chain reaction to start. [7] Once the reaction is initiated, decay of a series of fission products cannot be stopped completely ...

7. Nuclear pulse propulsion - Wikipedia

   en.wikipedia.org/wiki/Nuclear_pulse_propulsion

   The compressed plasma reaches criticality and undergoes fusion reactions. However, the fusion energy gain (Q) of these reactions is far below breakeven (Q < 1), meaning that the reaction consumes more energy than it produces. In a PuFF design, the fast neutrons released by the initial fusion reaction induce fission in the U-235 sheath.