The Barred Spiral Galaxy is the youngest Galaxy, it can be seen in many stages of development in: Illustration 4.08: Barred Galaxy in different stages.
As you can see from Illustration 4.09: Typical Barred Galaxy, the Bar is actually a Stellar Nursery, the Bar itself is a corridor that is used to move Trinary Engines to their final location, and we have images and studies that can verify this claim, its common knowledge so I do not need to reference this, even Mainstream Science acknowledges this, all the Trinary Engines are created within the Bar itself, then are moved into position, although the Spiral Arms are nothing more than Stellar Gases, the new Trinary Engines, be it a Sun, Planet or Moon, are all moved through these corridors, I say Moon but I am not so sure those are being delivered: since I have found no images to give me the Empirical Evidence, whereas I do have to explain Ball Lightning , because Tesla said it was the Key to understanding the Universe, so it would seem their is Empirical Evidence that Ball Lightning Exist, and it can explain how Moons are born, so the only Empirical Evidence I have is that Planets are born there, while the systems they are being delivered to are not confined to the corridors, in fact they follow the path that is set out by the Dark Stars, which is always where they get delivered to, then the Dark Stars Companion Star will take it the rest of the way, this is a very efficient method of moving Trinary Engines around the Galaxy, and from time to time, a Trinary Engine can be removed from a System, and the Dark Stars Companion will retrieve it, but sometimes it will fly into the Sun and go Super Nova, the Sun then redistributes all the Material back to the other Planets and Moons in its system.
Galactic Evolution is a process of refinement and old age, every Solar System in a Galaxy is an Evolutionary process that takes billions of years to mature, and the Energy and Material in that Galaxy is recycled though a process of Gravitational attraction, and the occasional Nova or Super Nova, which occur when a system is too far out of balance to fix it any other way, and Earth is now showing signs that it too will go Nova, but not because of Nature, but Human Stupidity, because in Nature, it seems to happen more in older systems that have accumulated too much Material, for a Planet: a Nova is the way a Planet can lose mass, whereas a Sun can go Nova if it has too much material, we see this as a Dwarf Sun, if it goes Super Nova it will not exist after that and that Solar System will be absorbed back into the Galaxy by the Dark Star, or it will simply restart, which means it actually changed to a Dark Sun, then back again, so the term Nova or Super Nova does not change its meaning, so the only change I will make to current science, is that I believe that when it goes Nova or Super Nova, the Trinary Engine could restart if a Nova and or it could disappear if a Super Nova occurs, but it can also just have switched to a Dark Sun, but the Sun or Trinary Engine that go Nova never dies, the change in brightness is due to the process of collecting all the debris and redistributing it, so terms like dwarf or giant stars, is misleading, since they normally refer to a Dead or Dying System, when in fact it is just a system that is restarting, meaning it will rejuvenate the system, and this can take a long time.
The Typical Barred Galaxy is alive, it was born, it will grown, it might some day change to a Dark Galaxy, and it may someday, die.
Our own Galaxy is on a collision course with the Galaxy Andromeda, the two will merge, but before they do, one will change to a Dark Galaxy, then it will redimension and not come back, so it will fade away, that is the Galaxy itself, and not all its Planets, they will merge with our own without any problems. I have no idea which Galaxy will survive, because that decision has not yet been made, because the Universe is always Evolving, I just know that the two do not merge into one, and I have never seen a Galaxy with two Engines. There is too much more to say about this subject at this time, I try to keep the page count low, while trying to pack as much information as I can about each subject, but some are better to make a new book about, then to make this book to large.