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  2. Space velocity - Wikipedia

    en.wikipedia.org/wiki/Space_velocity

    Space velocity may refer to: Space velocity (astronomy) , the velocity of a star in the galactic coordinate system Space velocity (chemistry) , the relation between volumetric flow rate and reactor volume in a chemical reactor

  3. 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.

  4. 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:

  5. Rolls-Royce is in talks to use its compact nuclear reactors ...

    www.aol.com/news/rolls-royce-talks-compact...

    Rolls-Royce has been working on nuclear-microreactor technology for over three years, first collaborating with the UK Space Agency in 2021.

  6. 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 ...

  7. Radioisotope thermoelectric generator - Wikipedia

    en.wikipedia.org/wiki/Radioisotope...

    Diagram of an RTG used on the Cassini probe. A radioisotope thermoelectric generator (RTG, RITEG), sometimes referred to as a radioisotope power system (RPS), is a type of nuclear battery that uses an array of thermocouples to convert the heat released by the decay of a suitable radioactive material into electricity by the Seebeck effect.

  8. Kilopower - Wikipedia

    en.wikipedia.org/wiki/Kilopower

    The tests included thermal, materials, and component validation, and culminated in a successful fission trial at full-power. Various faults in the supporting equipment were simulated to ensure the reactor could respond safely. [2] The KRUSTY reactor was run at full power on March 20, 2018 during a 28-hour test using a 28 kg uranium-235 reactor ...

  9. Spacecraft propulsion - Wikipedia

    en.wikipedia.org/wiki/Spacecraft_propulsion

    When in space, the purpose of a propulsion system is to change the velocity, or v, of a spacecraft. [ 7 ] In-space propulsion begins where the upper stage of the launch vehicle leaves off, performing the functions of primary propulsion , reaction control , station keeping , precision pointing , and orbital maneuvering .