I appreciate your question donkeyman but there are posters on here far more qualified than me to answer your query…
My universe only stretches as far as the places I have lived and visited, for a more detailed explanation I can do one of two things:-
(1) I can direct you to the many articles produced on the internet, in books, and of course the BBC/NASA and make your own conclusions…Or
(2) Offer my own opinion based on the above sources and a very active imagination…
So we are in the same boat!
Looks like we are at similar levels of comprehension then
OGF,
Im afraid l refuse to use google, l think my brain needs all
the exercise it can get!
I do have few books l can read, if l can find them in the
garage! But it is good fun to fantasise and that is probably
as good as anything else!
Best Regards Donkeyman!Realist, I totally agree with you about the colors. Coloration is typically based on compounds found on spectrometry results of the objects being observed, and then the software imposes the colors of similar compounds that we see here on Earth producing the images that we are shown.
You have hit on one of the fundamental problems of understanding the universe; there is too much unaccounted for. Too much what? Antimatter? Matter? Energy? Something else?
One of the things that I should add about the bread metaphor is that there is a myth that in some distant time, the skies would grow dark. That’s not the case. Most of the galaxies are moving father apart, not the objects within the universe. One of these days, the Andromeda galaxy will merge with ours. Now that would be stunning! https://www.youtube.com/watch?v=4disyKG7XtU
I don’t think anything bleak about the future of the universe at all! It’s probably just a big recycling machine. It’s just a little lonely out here, being new on the scene and all.
On Sunday Nasa released an audio clip that represents actual sound waves emanating from the enormous black hole at the centre of the Perseus galaxy cluster, which is more than 200m light years away.
The sound is edited so that it can be heard by human ears. Nasa mixed it with “other data” and amplified it, saying that the idea that there is no sound in space was a misconception.
“The misconception that there is no sound in space originates because most space is a ~vacuum, providing no way for sound waves to travel,” Nasa tweeted.
“A galaxy cluster has so much gas that we’ve picked up actual sound. Here it’s amplified, and mixed with other data, to hear a black hole!”
we may also query whether or not there is a past as we know it’ present or future or whether indeed they are just on the same continuum always and we just break them up for convenience ; that does not mean to say we do not age and our cells and thoughts keep changing ; fascinating to think our pasts are still there within our reach somehow as are our futures?
I think it is a case of “earth left hand down a bit” to avoid any black holes in space