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  2. Reactionless drive - Wikipedia

    en.wikipedia.org/wiki/Reactionless_drive

    A reactionless drive is a hypothetical device producing motion without the exhaust of a propellant.A propellantless drive is not necessarily reactionless when it constitutes an open system interacting with external fields; but a reactionless drive is a particular case of a propellantless drive that is a closed system, presumably in contradiction with the law of conservation of momentum.

  3. Field propulsion - Wikipedia

    en.wikipedia.org/wiki/Field_propulsion

    Field propulsion is the ... Proposed drives that use field propulsion are often called a reactionless or propellantless ... Field Resonance Propulsion Concept - NASA;

  4. EmDrive - Wikipedia

    en.wikipedia.org/wiki/EmDrive

    Since 2011, White had a team at NASA known as the Advanced Propulsion Physics Laboratory, or Eagleworks Laboratories, devoted to studying exotic propulsion concepts. [79] The group investigated ideas for a wide range of untested and fringe proposals , including Alcubierre drives , drives that interact with the quantum vacuum , and RF resonant ...

  5. Breakthrough Propulsion Physics Program - Wikipedia

    en.wikipedia.org/wiki/Breakthrough_Propulsion...

    The Breakthrough Propulsion Physics project addressed a selection of "incremental and affordable" research questions towards the overall goal of propellantless propulsion, hyperfast travel, and breakthrough propulsion methods. [3] It selected and funded five external projects, two in-house tasks and one minor grant. [2]

  6. Spacecraft propulsion - Wikipedia

    en.wikipedia.org/wiki/Spacecraft_propulsion

    With a conventional chemical propulsion system, 2% of a rocket's total mass might make it to the destination, with the other 98% having been consumed as fuel. With an electric propulsion system, 70% of what's aboard in low Earth orbit can make it to a deep-space destination. [24] However, there is a trade-off.

  7. Advanced Propulsion Physics Laboratory - Wikipedia

    en.wikipedia.org/wiki/Advanced_Propulsion...

    The Advanced Propulsion Physics Laboratory is enabled by section 2.3.7 of the NASA Technology Roadmap TA 2: In Space Propulsion Technologies: [11] Breakthrough Propulsion: Breakthrough propulsion is an area of technology development that seeks to explore and develop a deeper understanding of the nature of space-time, gravitation, inertial frames, quantum vacuum, and other fundamental physical ...

  8. Advanced Electric Propulsion System - Wikipedia

    en.wikipedia.org/wiki/Advanced_Electric...

    The Advanced Electric Propulsion System qualification thruster inside one of the vacuum chambers at NASA Glenn’s Electric Propulsion and Power Laboratory. Advanced Electric Propulsion System ( AEPS ) is a solar electric propulsion system for spacecraft that is being designed, developed and tested by NASA and Aerojet Rocketdyne for large-scale ...

  9. Helical engine - Wikipedia

    en.wikipedia.org/wiki/Helical_engine

    The Helical engine is a proposed spacecraft propulsion drive that, like other reactionless drives, would violate the laws of physics. [1] [2] [3]The concept was proposed by David M. Burns, formerly a NASA engineer at the Marshall Space Flight Center in Alabama, in a non-peer-reviewed report published on a NASA server in 2019 describing it as "A new concept for in-space propulsion is proposed ...