In astronomy, the interstellar medium (or ISM) is the matter that exists in the space between the star systems in a galaxy. This matter includes gas in ionic, atomic, and molecular form, dust, and cosmic rays. It fills interstellar space and blends smoothly into the surrounding intergalactic space.
That definition is incorrect and shows the ignorance associated with mainstream physics.
That would be like going to Spain and, upon discovering that they are all using the term
adios to mean goodbye, you then announced that all mainstream Spanish-speakers are ignorant. The term
interstellar medium is a term coined by scientists to describe the particles that form the clouds in open space between stars. You will hear this at the opening remarks to the NASA video I posted. I specifically chose that one since you were trying to twist their words.
The analogy of the bow wave of a boat is more accurate than you are able or willing to understand.
An electromagnetic bow wave, an analogy Dr McComas would revise if he had any idea it would be twisted into aether.
Then state its mass in kilograms. You can't, because it doesn't.
Aether physically occupies three dimensional space.
Then state its volume in cubic meters. You can't, because it doesn't.
Aether is physically displaced by matter.
Then state its displacement in meters and/or its rate of displacement in meters per second. You can't, because it isn't.
The bow wave of a boat is the boat's associated water displacement wave. The wave out ahead of our solar system is the solar system's associated aether displacement wave.
No, as NASA tells you, it is a purely electromagnetic phenomenon. Dr McComas is "mainstream physics", and he would take you behind the woodshed for your slander (rhetorically, of course) in a heartbeat if he had time to fritter away on SciForums.
The reason why there is an offset between the light lensing through the space neighboring galaxy clusters and the galaxy clusters themselves is because the galaxy clusters are moving through and displacing the aether.
No, gravitational lensing was predicted by Einstein, proven at a solar eclipse he missed, and is further demonstrated by Gravity Probe B. It's all consistent with GR.
The ripple created when galaxy clusters collide is an aether displacement wave.
No, there's no aether, remember? There's no mass in kilograms, no volume in meters, no displacement in meters, and no displacement velocity in meters per second.
The 'core' of mass 'left behind' when galaxy clusters collide is caused by the galaxy clusters moving through and displacing the aether.
And you know that with certainty even though you are not aware that the force presented by a charge moving orthogonally to a magnetic field is equal to the amount of charge times the particle speed timed the field strength? This is like telling the Spaniard
adios doesn't mean good-bye, without any knowledge that the salutation used to be
Dominus vobiscum (God go with you), and that the nominative form
Deus converted in Spain to
Dios.
I usually avoid analogies, but there's a time and a place, I guess. The facts are these: "mainstream physics" is not only a euphemism. It's synonymous with knowledge, acquired from best evidence. If you never had an opportunity to acquire the knowledge yourself, that's one thing. But to turn around and call knowledge ignorance, merely to shore up a false belief, and when you have people spoon feeding you the simplified explanations, made easy as pie to understand, well - you be the judge. Imagine if I--and others similarly situated--were jumping to false conclusions, with no laws, no evidence and no working knowledge to support our posts. Put the shoe on the other foot.