gb7...@yahoo.com wrote:

Spiral galaxies are accelerating on their tracks like trains,
eventually crashing and leaving elliptic galaxies behind.

The cause for the acceleration is simple: Gravity tightens
these swirling spiral cyclones. Spiral arms are locally bound
gravitationally and the spiral galaxy is gravitationally loose,
so loose that without dark energy the spiral galaxy would fly
apart. There is no expansion. There is speedup of spiral galaxies
on their tracks. There is a growing distance as a result, but
soon most galaxies will turn into chaotic elliptic
galaxies. Our own galaxy is colliding with the Andromeda galaxy.

Will elliptic galaxies turn into spiral galaxies again? Unknown.

The Universe will be filled with white clouds and not spirals.
It was the big bang that created spiral upon spiral galaxies
but all is turning into a big random collision cloud. Even
elliptic galaxies collide, raising the random and the giant,
the expansion is slowing down.

Mostly *****!

Major factors include
o conservation of angular momentum
o gravitational interaction (of baryonic and dark matter)
o cosmic expansion
o supernovae explosions black hole jets
http://www.pbs.org/wgbh/nova/blackhole/program.html
http://www.pbs.org/wgbh/nova/programs/ht/qt/3314_05.html
http://www.pbs.org/wgbh/nova/programs/ht/rv/3314_05.html- Hide quoted text -

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