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  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

    The Kiwi-A Prime nuclear thermal rocket engine 1960 test at Jackass Flats, Nevada. Mars Curiosity rover powered by a RTG on Mars. White RTG with fins is visible at far side of rover. Nuclear power in space is the use of nuclear power in outer space, typically either small fission systems or radioactive decay for electricity or heat.

  4. Multi-mission radioisotope thermoelectric generator - Wikipedia

    en.wikipedia.org/wiki/Multi-Mission_Radioisotope...

    Diagram of a MMRTG. The multi-mission radioisotope thermoelectric generator (MMRTG) is a type of radioisotope thermoelectric generator (RTG) developed for NASA space missions [1] such as the Mars Science Laboratory (MSL), under the jurisdiction of the United States Department of Energy's Office of Space and Defense Power Systems within the Office of Nuclear Energy.

  5. Safe affordable fission engine - Wikipedia

    en.wikipedia.org/wiki/Safe_Affordable_Fission_Engine

    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] The fuel was uranium nitride in a core of 381 pins clad ...

  6. Fission-fragment rocket - Wikipedia

    en.wikipedia.org/wiki/Fission-fragment_rocket

    The fission-fragment rocket is a rocket engine design that directly harnesses hot nuclear fission products for thrust, as opposed to using a separate fluid as working mass. The design can, in theory, produce very high specific impulse while still being well within the abilities of current technologies.

  7. SpaceX launches “limitless” ‘zero fuel’ engine into space

    www.aol.com/spacex-launches-limitless-zero-fuel...

    SpaceX has launched a new type of zero-fuel propulsion system into orbit, which its creators claim will revolutionise the space industry.. The Quantum Drive engine, built by US startup IVO Ltd ...

  8. 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.

  9. 7 Times You Can Get Life Insurance With No-Exam Policies

    www.aol.com/lifestyle/7-times-life-insurance-no...

    For instance, Ethos Life Insurance offered quotes ranging from $43 to $118/month for a $1,050,000 policy with a 10-year term. In contrast, Bestow quoted $38.53/month for a $350,000 policy with the ...