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Hidden Supercluster Could Solve Milky Way Mystery
Qanta Magazine ^ | 21 Nov, 2017 | Liz Kruesi

Posted on 11/23/2017 8:41:02 AM PST by MtnClimber

The Milky Way, just like every galaxy in the cosmos, moves. While everything in the universe is constantly moving because the universe itself is expanding, since the 1970s astronomers have known of an additional motion, called peculiar velocity. This is a different sort of flow that we seem to be caught in. The Local Group of galaxies — a collection that includes the Milky Way, Andromeda and a few dozen smaller galactic companions — moves at about 600 kilometers per second with respect to the leftover radiation from the Big Bang.

Over the past few decades, astronomers have tallied up all the things that could be pulling and pushing on the Local Group — nearby galaxy clusters, superclusters, walls of clusters and cosmic voids that exert a non-negligible gravitational pull on our own neighborhood.

The biggest tugboat is the Shapley Supercluster, a behemoth of 50 million billion solar masses that resides about 500 million light years away from Earth (and not too far away in the sky from the Vela Supercluster). It accounts for between a quarter and half of the Local Group’s peculiar velocity.

The remaining motion can’t be accounted for by structures astronomers have already found. So astronomers keep looking farther out into the universe, tallying increasingly distant objects that contribute to the net gravitational pull on the Milky Way. Gravitational pull decreases with increasing distance, but the effect is partly offset by the increasing size of these structures. “As the maps have gone outward,” said Mike Hudson, a cosmologist at the University of Waterloo in Canada, “people continue to identify bigger and bigger things at the edge of the survey.

(Excerpt) Read more at quantamagazine.org ...


TOPICS: Astronomy; Science
KEYWORDS: andromeda; greatdebate; harlowshapley; hebercurtis; m31; milkyway; shapleysupercluster; shapleywaswrong; stringtheory
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1 posted on 11/23/2017 8:41:02 AM PST by MtnClimber
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To: MtnClimber

600 km/s could get you a speeding ticket in most galaxies.


2 posted on 11/23/2017 8:41:59 AM PST by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: MtnClimber

I knew it!! Clearly we have a case of galactic climate change.


3 posted on 11/23/2017 8:47:18 AM PST by FlipWilson (The)
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To: MtnClimber
Peculiar velocity = The Rapture.

1 Peter 2:9
(KJV)

9 But ye are a chosen generation, a royal priesthood, an holy nation, a peculiar people; that ye should shew forth the praises of him who hath called you out of darkness into his marvellous light;

4 posted on 11/23/2017 8:50:37 AM PST by knarf (I say things that are true, I have no proof, but they're true)
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To: FlipWilson

“I knew it!! Clearly we have a case of galactic climate change.”

So, you’ve finally FLIPPED huh,Wilson....LOL...


5 posted on 11/23/2017 8:51:21 AM PST by litehaus (A memory toooo long.............)
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To: MtnClimber

“Shapely supercluster”

ttiuwp


6 posted on 11/23/2017 8:51:34 AM PST by BenLurkin (The above is not a statement of fact. It is either satire or opinion. Or both.)
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[[moves at about 600 kilometers per second with respect to the leftover radiation from the Big Bang.]]

Uh Huh- tell that to God when ya see him- He’ll likely be unimpressed with your conclusions


7 posted on 11/23/2017 8:52:30 AM PST by Bob434
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To: MtnClimber
Nice article, thanks for posting.

Astronomers generally stay away from the “Zone of Avoidance.” When one astronomer didn’t, she found a giant cosmic structure that could help explain why our galaxy moves so fast.

"How to Discover Secrets of the Universe for Dummies".

Now there's a paradox that's sure to swallow up entire galaxies of established wisdom.

8 posted on 11/23/2017 8:53:39 AM PST by Ezekiel (All who mourn(ed!) the destruction of America merit the celebration of her rebirth.)
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To: MtnClimber

Big Bang?

Wasn’t that dismissed a few weeks ago by another scientific/astronomical group?


9 posted on 11/23/2017 9:00:57 AM PST by TomGuy
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To: SunkenCiv

Ping


10 posted on 11/23/2017 9:02:14 AM PST by stockpirate (The GOPe and socialist friends do not fear Americans)
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To: FlipWilson
"Clearly we have a case of galactic climate change."

No problem. It's nothing that some more taxes and laws won't fix.
 

11 posted on 11/23/2017 9:03:36 AM PST by Governor Dinwiddie (Happy Thanksgiving!)
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To: MtnClimber

There was no Big Bang.....


12 posted on 11/23/2017 9:03:59 AM PST by stockpirate (The GOPe and socialist friends do not fear Americans)
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To: MtnClimber

They recently pointed the Hubble at an area where it appeared to have no stars as it was referred to aa large black void. Well they found millions of stars,.opps


13 posted on 11/23/2017 9:07:03 AM PST by stockpirate (The GOPe and socialist friends do not fear Americans)
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To: BenLurkin

>>Shapley Supercluster

Hopefully Al Frankin won’t be allowed near it while it’s asleep.


14 posted on 11/23/2017 9:07:43 AM PST by HLPhat ("TO SECURE THESE RIGHTS" -- Government with any other purpose is not American.)
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To: Governor Dinwiddie

More taxes should indeed fix this case of galactic climate change. But are the Klingons and Romulans paying their fair share?


15 posted on 11/23/2017 9:07:58 AM PST by FlipWilson (The)
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To: FlipWilson
galactic climate change

LOL!! ... and very perceptive as "galactic warming" wouldn't quite work now, would it?

16 posted on 11/23/2017 9:10:19 AM PST by glennaro
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To: glennaro

I would call it galactic warmingcoolingorsomething but it is too long. So I went with climate change.


17 posted on 11/23/2017 9:13:38 AM PST by FlipWilson (The)
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To: FlipWilson

I’m sure the Klingons are, but the Romulans? If they were, I’d be more surprised than anyone!

CA....


18 posted on 11/23/2017 9:23:14 AM PST by Chances Are (Seems I've found that silly grin again....)
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To: stockpirate; brytlea; cripplecreek; decimon; disndat; KoRn; Grammy; steelyourfaith; Mmogamer; ...
Thanks stockpirate. Also going to ping the APoD list, bound to be of interest.


· List topics · post a topic · subscribe · Google ·
Life has such odd ironies, some of which are just artifacts of insane politics.

19 posted on 11/23/2017 9:44:54 AM PST by SunkenCiv (www.tapatalk.com/groups/godsgravesglyphs/, forum.darwincentral.org, www.gopbriefingroom.com)
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http://www.google.com/search?q=galactic+wall


20 posted on 11/23/2017 9:50:14 AM PST by SunkenCiv (www.tapatalk.com/groups/godsgravesglyphs/, forum.darwincentral.org, www.gopbriefingroom.com)
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