Electrodynamic assembly for propelling a spacecraft in orbit around a star having a magnetic field

An electrodynamic assembly for propelling a spacecraft in orbit around a celestial body having a magnetic field, the electrodynamic assembly comprising:

• a plurality of coaxial cables, each coaxial cable comprising an electrically conductive core surrounded by a first electrically insulating sheath,
• wherein each coaxial cable further comprises an electrically conductive current return circuit mounted outside the first electrically insulating sheath, the current return circuit including a first end electrically connected to a first end of said core of the coaxial cable,
• wherein the coaxial cables are electrically coupled in series such that when a current circulates, the current return circuits see a same current direction and the cores all see a same direction opposite the current return circuits, and
• wherein the electrodynamic assembly extends between a first free end of the electrodynamic assembly and a second end fastened to the spacecraft.