"Ether theory, or aether theories, is an idea in physics which proposes the existence of a medium that can transmit gravitational or electromagnetic forces."
https://healthresearchfunding.org/ether-theory-explained/
"ether, also spelled aether, also called luminiferous ether, in physics, a theoretical universal substance believed during the 19th century to act as the medium for transmission of electromagnetic waves (e.g., light and X-rays), much as sound waves are transmitted by elastic media such as air."
https://www.britannica.com/science/ether-theoretical-substance
"The Sun generates magnetic fields that extend out into space to form the interplanetary magnetic field – the magnetic field that pervades our solar system. The field is carried through the solar system by the solar wind – a stream of electrically charged gas blowing outward from the Sun in all directions."
https://solarsystem.nasa.gov/solar-system/sun/in-depth/
"Plasma react very strongly to electromagnetic forces, and is the dominant force in many cosmic plasmas, e.g. stellar surfaces, active galactic nuclei, and, interplanetary, interstellar and intergalactic space.[1]"
"Space plasma moving through a magnetic field generates its own electric current, can act as a unipolar inductor, and it conducts electricity better than metals, e.g. the heliospheric current sheet above, and Birkeland currents."
https://www.plasma-universe.com/
"The basic idea of the Electric Universe Theory (EUT), also known as Plasma Cosmology (PC, although PC is really a subset of EUT), is that everything in the Universe is connected, mainly via electric currents flowing through plasma."
https://thehonestscientist.com/electric-universe/
"Plasma cosmology is a non-standard cosmology whose central postulate is that the dynamics of ionized gases and plasmas play important, if not dominant, roles in the physics of the universe at interstellar and intergalactic scales."
https://en.wikipedia.org/wiki/Plasma_cosmology