I find it confusing when they talk about the structure and dynamics of galaxies, given their enormous sizes, most of which are 10s or 100s of thousands of light years across, one light year being roughly 6 TRILLION miles. Since gravitational influences, like light, are thought to travel at the speed of light, how can these beasts even have a coherent structure, such as a neat spiral? Our own Milky Way spiral galaxy is roughly estimated at around 100,000 light years across.
Below is a link to an interesting related article on galaxy structure...
Why Aren’t Spiral Galaxies More Wound Up?
It’s rare to find a galaxy where the arms wrap around even a full 360 degrees. But after billions of years, why is that?
https://medium.com/starts-with-a-bang/ask-ethan-why-aren-t-spiral-galaxies-more-wound-up-7cd2e6731797
1 posted on
04/30/2019 8:34:49 PM PDT by
ETL
To: All
Messier 100
2 posted on
04/30/2019 8:36:05 PM PDT by
ETL
(REAL Russia collusion! Fake Dossier, Uranium-1 Deal, Missile Defense, Iran Deal, Nukes: Click ETL)
To: All
3 posted on
04/30/2019 8:37:09 PM PDT by
ETL
(REAL Russia collusion! Fake Dossier, Uranium-1 Deal, Missile Defense, Iran Deal, Nukes: Click ETL)
To: All
Spiral galaxy NGC 1232
4 posted on
04/30/2019 8:38:38 PM PDT by
ETL
(REAL Russia collusion! Fake Dossier, Uranium-1 Deal, Missile Defense, Iran Deal, Nukes: Click ETL)
To: ETL
Amazing stuff! So amazing and complex that it is obvious an amazing, all-powerful God created this marvelous universe!
To: ETL
They believe dark matter exists BUT they have no idea what it is.
6 posted on
04/30/2019 9:10:13 PM PDT by
Williams
(Stop Tolerating The Intolerant.)
To: ETL
To: ETL
Thanks for posting.
Very interesting, but difficult to completely understand.
To: ETL
They’re trying to figure out the galaxy rotation curve problem.
The claim that this removes doubts about dark matter though is cultish in its ludicrousness.
13 posted on
04/30/2019 9:33:47 PM PDT by
thoughtomator
(The Clinton Coup attempt was a worse attack on the USA than was 9/11)
To: ETL
The research institute this work came from - International School for Advanced Studies (SISSA) - is in Trieste, Italy, which is about 75 miles east of Venice.
First time I have heard about it.
To: ETL
Whenever confusion increases about such matters, I always come back to
thisEverything makes sense.
18 posted on
04/30/2019 10:09:34 PM PDT by
Sgt_Schultze
(When your business model depends on slave labor, you're always going to need more slaves.)
To: ETL
19 posted on
04/30/2019 10:30:23 PM PDT by
imardmd1
(Fiat Lux)
To: ETL
I read the Medium link and I’m still not sure I understand what it described.
How does the initial spiral get started and then can never progress to 360 degrees? If it gets started, it seems like it should be able to continue to get longer tails, the further the stars move out, at least, if the stars always keep the same speed.
I must be missing something.
23 posted on
05/01/2019 5:59:32 AM PDT by
ConservativeMind
(Trump: Befuddling Democrats, Republicans, and the Media for the benefit of the US and all mankind.)
To: ETL
Thanks, ETL.
Very interesting.
24 posted on
05/01/2019 6:59:32 AM PDT by
samtheman
(To steal an election, who do you collude with? Russians in Russia or Mexicans in California?)
To: ETL
Dark Matter, an article of FAITH among “scientists” in the “modern” world.
27 posted on
05/02/2019 7:01:17 AM PDT by
Centurion2000
(Coming in from the cold .... been a LONG while.)
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