It's to my understanding that lenticular galaxies have aging stars in them and little current star formation. Will they be the first kinds of galaxies to fade out, due to the stars dying? I ask this because I've recently been looking at NGC 404 and it seems that it's more of a remnant of a spiral galaxy, so does that conclude that it'll 'die out' before a regular spiral galaxy? Or will they fade at the same rate? Does this make sense? I hope so...
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Here are some pics: https://imgur.com/a/xUViwjE
There are multiple Galaxy configurations (Barred Spiral, Spiral, Lenticular, Peculiar, Elliptical, Irregular) that are repeated throughout the Universe.
Why is this?
Why aren't there more/less geometries?
What determines a galaxy's particular shape?
ELI5: Could the Milky Way become a Lenticular galaxy, essentially a burned out remnant without gas to make new stars?
No real explanation here, just a debate about their evolution. Are they somehow "older" than our own galaxy? Eerie to think they could contain the remains of countless civilizations...
http://en.wikipedia.org/wiki/Lenticular_galaxy
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THUD
THUD
THUD
The full conference chamber was silent as the slow, ponderous sound of inevitability approached via the hallway outside. The documents had been prepared. The Fdaz Metallurgy Consortium had brokered a one-in-a-generation deal to mine one of the moons of a colony of the notoriously fearful, xenophobic Awsevaj for enough rare earths to supply equipment manufacturers in this sector of the galaxy for a generation. All that remained was the signing --- and the witnessing.
For an occasion like this, an enormous agreement with a people who rarely made agreements, no ordinary witness was procured, but rather, a Witness. One of the legendarily slow, enormous leviathans, whose memory was continuous for generations of most ordinary sapients and unlike every electronic and physical-media storage to date, untamperable. On occasion, Witnesses died of natural causes. In one famous incident that nearly caused a large-scale galactic war, a Witness was deliberately assassinated.
THUD!
THUD!
THUD!
The Witness' slow, reverbrating footfalls came ever closer like the sound of history being made. The room had been silent for so long, waiting for the being's approach. The huge entryway's doors opened as the creature slowly, slowly moved through the doorway. Some of the officials in the room drew back as though the huge sapient might crush them, as though its slow movements could not easily be anticipated and avoided.
It was many times taller than already quite tall Hefz chairman of the Fdaz Consortium. Bipedal, bilaterally symmetrical, with two huge arms capable of carrying off small vehicles with passengers inside. In one hand it carried some sort of open container, and there was *steam* coming off the noxious-smelling liquid inside. The Witness plodded painfully slowly to the enormous throne prepared for it, and then slowly lowered itself, partly folding its body so that its two feet rested on the floor and its major joint on the platform.
Everyone knew that the Witnesses were a civilization in and of themselves. While it seemed like they had been part of galactic civilization forever, it was generally known that only a handful of their own reproductive generations had passed since they had emerged into galactic society at all. Their physical ponderousness and slowness of thought and reaction belied a shockingly ra
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