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  2. Spacecraft electric propulsion - Wikipedia

    en.wikipedia.org/wiki/Spacecraft_electric_propulsion

    6 kW Hall thruster in operation at the NASA Jet Propulsion Laboratory 3D sketch of an electromagnetic propulsion fusion plasma thruster. Spacecraft electric propulsion (or just electric propulsion) is a type of spacecraft propulsion technique that uses electrostatic or electromagnetic fields to accelerate mass to high speed and thus generating thrust to modify the velocity of a spacecraft in ...

  3. Rocket - Wikipedia

    en.wikipedia.org/wiki/Rocket

    A rocket design can be as simple as a cardboard tube filled with black powder, but to make an efficient, accurate rocket or missile involves overcoming a number of difficult problems. The main difficulties include cooling the combustion chamber, pumping the fuel (in the case of a liquid fuel), and controlling and correcting the direction of motion.

  4. Spacecraft propulsion - Wikipedia

    en.wikipedia.org/wiki/Spacecraft_propulsion

    For rocket-like propulsion systems, this is a function of mass fraction and exhaust velocity; mass fraction for rocket-like systems is usually limited by propulsion system weight and tankage weight. [ citation needed ] For a system to achieve this limit, the payload may need to be a negligible percentage of the vehicle, and so the practical ...

  5. History of rockets - Wikipedia

    en.wikipedia.org/wiki/History_of_rockets

    The early Mysorean rockets and their successor British Congreve rockets [59] reduced veer somewhat by attaching a long stick to the end of a rocket (similar to modern bottle rockets) to make it harder for the rocket to change course. The largest of the Congreve rockets was the 32-pound (14.5 kg) Carcass, which had a 15-foot (4.6 m) stick.

  6. Plasma propulsion engine - Wikipedia

    en.wikipedia.org/wiki/Plasma_propulsion_engine

    VASIMR, short for Variable Specific Impulse Magnetoplasma Rocket, uses radio waves to ionize a propellant into a plasma. A magnetic field then accelerates the plasma out of the engine, generating thrust. A 200-megawatt VASIMR engine could reduce the time to travel from Earth to Jupiter or Saturn from six years to fourteen months, and from Earth ...

  7. What is Humanity’s Last Exam? - AOL

    www.aol.com/finance/openai-deepresearch-complete...

    DeepResearch successfully completed 26.6% of the recently developed test, which consists of over 3,000 questions across hundreds of subjects ranging from rocket science to analytic philosophy.

  8. Pulsed plasma thruster - Wikipedia

    en.wikipedia.org/wiki/Pulsed_plasma_thruster

    A pulsed plasma thruster (PPT), also known as a Pulsed Plasma Rocket (PPR), or as a plasma jet engine (PJE), is a form of electric spacecraft propulsion. [1] PPTs are generally considered the simplest form of electric spacecraft propulsion and were the first form of electric propulsion to be flown in space, having flown on two Soviet probes ...

  9. L3Harris unit making rocket motors used in Ukraine says ... - AOL

    www.aol.com/news/l3harris-unit-making-rocket...

    L3Harris Technologies' business unit Aerojet Rocketdyne has doubled its monthly production of motors for GMLRS rockets that are heavily used in Ukraine, a company executive said on Tuesday, as ...