"The presence of dark matter is necessary to explain the universe's current structure."
https://www.space.com/topics/dark-matter
"His theory claims to explain the missing 95% of the observable universe by the existence of "dark fluid"."
https://bigthink.com/hard-science/astrophysicist-dark-fluid-missing-95-percent-universe/
"In physics, aether theories (also known as ether theories) propose the existence of a medium, a space-filling substance or field as a transmission medium for the propagation of electromagnetic or gravitational forces. Since the development of special relativity, theories using a substantial aether fell out of use in modern physics, and are now replaced by more abstract models."
https://en.wikipedia.org/wiki/Aether_theories
"The aether exists and it is the medium for propagating light and other longitudinal and transverse (electromagnetic) waves across the universe. It is the fabric of our universe, consisting of tiny granules that transfer energy in the form of waves. Its structure and properties were worked out in the section on spacetime. In fact, it has a density property in the wave constants that appears in all of the energy wave equations. Without an aether, or without this density property, none of the calculations performed in this theory would be possible."
https://energywavetheory.com/explanations/aether/
"Electromagnetic radiation can be described in terms of a stream of mass-less particles, called photons, each traveling in a wave-like pattern at the speed of light. Each photon contains a certain amount of energy"
https://imagine.gsfc.nasa.gov/science/toolbox/emspectrum1.html
"Electromagnetic waves are the combination of electric and magnetic field waves produced by moving charges."
"Electromagnetic radiation, is a form of energy emitted by moving charged particles."
https://phys.libretexts.org/Bookshelves/University_Physics/Book%3A_Physics_(Boundless)/23%3A_Electromagnetic_Waves/23.2%3A_Electromagnetic_Waves_and_their_Properties
"Black objects absorb all the light that falls on them. Black is the ultimate dark color. But can anything be truly black, that is, absorb all light of all colors. And the answer is no, even the blackest black reflects just a little bit of light."
https://sage-advices.com/why-does-black-color-absorb-more-light/
Scientists Discover Outer Space Isn't Pitch-Black After All
https://www.npr.org/2020/11/18/936219170/scientists-discover-outer-space-isnt-pitch-black-after-all