Tendrils criss-cross and interconnect within magnetized plasma bubbles, forming networks of stars and galaxies. Astronomers have discovered low amounts of faint galaxies in the voids aligned in the shapes of tendrils, defying gravitational theory, and the tidal tail theory.
Galaxies like M106 are common, and emit five times too little amount of ultraviolet radiation than predicted by gravity theory alone. UV light ionizes neutral hydrogen gas into an electrical charged plasma.
There are far too many tendrils than what could form by UV light alone from galaxies.
Ionized hydrogen cosmic tendrils are vast plasma filaments where stars stream inside and on plasma bubbles.
The ionized hydrogen plasma tendrils are like a meter to measure the amount of ultraviolet radiation in a galaxy.
Some foolish dogmatic scientists, like all the rest that cannot find dark matter, are suggesting an absurd theory that dark matter is decaying.
The simple proven lab explanation is that ionized hydrogen plasma has electric currents and associated magnetic fields that produce vast cosmic tendrils having filamentary shapes, intense magnetic fields, and undetected electric currents that are concealed inside thick opaque dust and gas knots.
There is "no missing UV light" because it is the electric currents and magnetic fields, that form and stabilize the tendrils. Tendrils have incredibly strong magnetic fields, that are doing a lot more ionizing of hydrogen, than the UV radiation from galaxies.