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(Physics-Astronomy)   Old and busted: The Milky Way and Andromeda will collide in 4 billion years. New collision alert: It has begun. Everyone panic, the distant gas of our Galaxy is already in contact with the gas in Andromeda's halo   (physics-astronomy.com) divider line
    More: PSA, Galaxy, Milky Way, Andromeda galaxy, Andromeda Galaxy, brightest quasar, Astrophysicist Nicholas Lehner, light years, Hubble Space Telescope  
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910 clicks; posted to Geek » on 12 Apr 2020 at 5:33 PM (24 weeks ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook



41 Comments     (+0 »)
 
View Voting Results: Smartest and Funniest
 
2020-04-12 4:44:01 PM  
Keith Richards better use some of that Rolling Stones money to help fund space exploration efforts.
 
2020-04-12 4:51:58 PM  
Giggity.
 
2020-04-12 5:23:53 PM  
Meanwhile, my distant gas just hit the wife's nostrils, this is not going to be pretty
 
2020-04-12 5:25:08 PM  
And y'all wondered by the Puppeteers fired up the Fleet of Worlds...
 
2020-04-12 5:35:58 PM  
Trading gas is when you know the honeymoon is over.
 
2020-04-12 5:39:29 PM  

recondite cetacean: Trading gas is when you know the honeymoon is over.


Or, When the true fun begins
 
2020-04-12 5:40:05 PM  
China claiming the Andromeda Galaxy as Chinese territory in 3...2...1...
 
2020-04-12 5:40:27 PM  
It's not gay unless the globular clusters touch.
 
2020-04-12 5:44:19 PM  
Hey gal...axy. Wanna mingle interstellar media?
 
2020-04-12 5:46:58 PM  
CONTAAAAAACT!!!
 
2020-04-12 5:47:56 PM  

HighlanderRPI: Meanwhile, my distant gas just hit the wife's nostrils, this is not going to be pretty


As soon as that other galaxy gets a whiff of Uranus, it'll pull out and go find some other galaxy to penetrate.

/no voting in this thread?
 
2020-04-12 6:04:23 PM  
We'll get over it.
 
2020-04-12 6:09:03 PM  

hubiestubert: And y'all wondered by the Puppeteers fired up the Fleet of Worlds...


I mean if i was them I would have focused on building a fleet of O'Neill cylinders rather than move multiple planets into orbit around each other and moving them across the stars having to have some kind of radiation shielding and all that other jazz.
 
2020-04-12 6:12:18 PM  
I can't believe that this means I might be dead in a couple of billion years...
 
2020-04-12 6:13:59 PM  

Anenu: hubiestubert: And y'all wondered by the Puppeteers fired up the Fleet of Worlds...

I mean if i was them I would have focused on building a fleet of O'Neill cylinders rather than move multiple planets into orbit around each other and moving them across the stars having to have some kind of radiation shielding and all that other jazz.


To be fair, they weren't so scared that they cut off all trade while they were skeedaddling. And creating war with the Kzin and humanity, and then selling them BOTH General Product hulls all while trying to avoid Pak attention...give 'em credit for being able to mutlitask.
 
2020-04-12 6:30:07 PM  
28oa9i1t08037ue3m1l0i861-wpengine.netdna-ssl.comView Full Size

How big Andromeda would be in the sky if it were brought enough to see.

And if you need more reference, remember the moon is about the size of the hole punched in a sheet of paper held at arm length. Yes, really, try it.
 
2020-04-12 6:37:27 PM  
The distant gas of our Galaxy is already in contact with the gas in Andromeda's halo.

lh3.googleusercontent.comView Full Size


/got nuthin
 
2020-04-12 6:42:57 PM  
BRACE FOR IMPACT!


In 3 billion years
 
2020-04-12 7:13:22 PM  
But but a recent discovery....

The second damned sentence.  How hard is it to just give your article even a cursory proofread?

It's not like you had to rush to get this breaking news out....
 
2020-04-12 7:35:34 PM  
I read that they are now predicting the galaxies will largely miss each other
 
DVD
2020-04-12 7:55:40 PM  

BlazeTrailer: I read that they are now predicting the galaxies will largely miss each other


Funny, I read that the galactic centers were on a direct collision course.  The stars in each galaxy will largely miss each other, however.  There is a LOT of space between star systems.
 
2020-04-12 8:02:12 PM  

HighlanderRPI: Meanwhile, my distant gas just hit the wife's nostrils, this is not going to be pretty


My dad's distant gas frighted the dog into running into a window.

Also, not pretty.
 
2020-04-12 8:08:07 PM  
At least it's not the death gas from a Covid-19 patient's anus contacting your olfactory nerve, Subby.
 
2020-04-12 8:11:17 PM  
No problem, we will be there before that.
lh3.googleusercontent.comView Full Size
 
2020-04-12 8:28:23 PM  
My favorite statistic on this is "how many stars will collide?"  Answer:  Probably zero.

Space is big.  The effects will be gravitational, not stuff running into stuff.
 
2020-04-12 8:46:23 PM  

HighlanderRPI: Meanwhile, my distant gas just hit the wife's nostrils, this is not going to be pretty


Quick, yell at the dog.
 
2020-04-12 8:49:12 PM  

Snotnose: My favorite statistic on this is "how many stars will collide?"  Answer:  Probably zero. Space is big.  The effects will be gravitational, not stuff running into stuff.


Yes, but the gravitational effects will be massive.
 
2020-04-12 8:59:04 PM  

Sgygus: Snotnose: My favorite statistic on this is "how many stars will collide?"  Answer:  Probably zero. Space is big.  The effects will be gravitational, not stuff running into stuff.

Yes, but the gravitational effects will be massive.


Yes. So, in other words- stuff *will* run into other stuff, although I do not think on a stellar mass scale, but that might also happen. We just do not know.
Which makes it even more interesting, at least for me. Gravity is weird, and also weak, but this event makes it both wierder and stronger, not to mention magnetism also being in play.
I wish I could be around to watch it. The damn data one could get just from observing the interactions could fill every storage device ever conceived.
 
2020-04-12 9:52:42 PM  

Capt.Plywood: [28oa9i1t08037ue3m1l0i861-wpengine.ne​t​dna-ssl.com image 713x484]
How big Andromeda would be in the sky if it were brought enough to see.

And if you need more reference, remember the moon is about the size of the hole punched in a sheet of paper held at arm length. Yes, really, try it.


I seriously wish we could actually see andromeda like that with the naked eye.
 
2020-04-12 11:13:38 PM  
Fark user imageView Full Size


/sped up about a brazillian times
 
2020-04-12 11:33:43 PM  
Old news.  But even the collision of two empty objects of space will have the same impact as me colliding with Chrissy Teigen.
 
2020-04-13 12:11:28 AM  
and they will completely pass through each other without a pause
 
2020-04-13 12:12:52 AM  

Short Victoria's War: [Fark user image 480x270] [View Full Size image _x_]

/sped up about a brazillian times


sadly that is an old out of date idea with a core vs core collision.
 
2020-04-13 12:19:33 AM  
Hit the gas pedal. We totally have the right of way. Those Andys will back away.
 
2020-04-13 1:18:39 AM  
encrypted-tbn0.gstatic.comView Full Size


Gas to gas.
 
2020-04-13 2:25:17 AM  

Anenu: hubiestubert: And y'all wondered by the Puppeteers fired up the Fleet of Worlds...

I mean if i was them I would have focused on building a fleet of O'Neill cylinders rather than move multiple planets into orbit around each other and moving them across the stars having to have some kind of radiation shielding and all that other jazz.


They can't be worried about the core explosion, as they can shield their worlds from the radiation of high C fraction travel as you note.  No reason to move at all.  I think they're worried about the millions of displaced species fleeing, like the Pak and much worse. A scenario such as when Rome was sacked by invading tribes displaced by others.  A bunch of habitats might not be as defensible as whole worlds according to the military doctrine of a herd race of cowards.
 
2020-04-13 5:24:24 AM  

Farker Soze: Anenu: hubiestubert: And y'all wondered by the Puppeteers fired up the Fleet of Worlds...

I mean if i was them I would have focused on building a fleet of O'Neill cylinders rather than move multiple planets into orbit around each other and moving them across the stars having to have some kind of radiation shielding and all that other jazz.

They can't be worried about the core explosion, as they can shield their worlds from the radiation of high C fraction travel as you note.  No reason to move at all.  I think they're worried about the millions of displaced species fleeing, like the Pak and much worse. A scenario such as when Rome was sacked by invading tribes displaced by others.  A bunch of habitats might not be as defensible as whole worlds according to the military doctrine of a herd race of cowards.


The theory I like is that their actual plan is to head up out of the galaxy and then towards the core. If they can shield themselves from the radiation they could then wait out the core explosion and have the entire place to themselves.
 
2020-04-13 7:32:17 AM  

Anenu: Farker Soze: Anenu: hubiestubert: And y'all wondered by the Puppeteers fired up the Fleet of Worlds...

I mean if i was them I would have focused on building a fleet of O'Neill cylinders rather than move multiple planets into orbit around each other and moving them across the stars having to have some kind of radiation shielding and all that other jazz.

They can't be worried about the core explosion, as they can shield their worlds from the radiation of high C fraction travel as you note.  No reason to move at all.  I think they're worried about the millions of displaced species fleeing, like the Pak and much worse. A scenario such as when Rome was sacked by invading tribes displaced by others.  A bunch of habitats might not be as defensible as whole worlds according to the military doctrine of a herd race of cowards.

The theory I like is that their actual plan is to head up out of the galaxy and then towards the core. If they can shield themselves from the radiation they could then wait out the core explosion and have the entire place to themselves.


Clever, but what if there are similar equiv-tech civs that are also shielding themselves in the core?
 
2020-04-13 8:04:21 AM  
Hey Andromeda, pull my finger. 👉
 
2020-04-13 9:12:14 AM  

Target Builder: Capt.Plywood: [28oa9i1t08037ue3m1l0i861-wpengine.net​dna-ssl.com image 713x484]
How big Andromeda would be in the sky if it were brought enough to see.

And if you need more reference, remember the moon is about the size of the hole punched in a sheet of paper held at arm length. Yes, really, try it.

I seriously wish we could actually see andromeda like that with the naked eye.


Oh you can. Its just that your eye cant distinguish the light its getting from Romy from other sources of light that are far more powerful

its like setting up 2 flashlights at different distances in a line. you see both but only register the closer one
 
2020-04-13 12:04:52 PM  

lifeslammer: Target Builder: Capt.Plywood: [28oa9i1t08037ue3m1l0i861-wpengine.net​dna-ssl.com image 713x484]
How big Andromeda would be in the sky if it were brought enough to see.

And if you need more reference, remember the moon is about the size of the hole punched in a sheet of paper held at arm length. Yes, really, try it.

I seriously wish we could actually see andromeda like that with the naked eye.

Oh you can. Its just that your eye cant distinguish the light its getting from Romy from other sources of light that are far more powerful

its like setting up 2 flashlights at different distances in a line. you see both but only register the closer one


Kinda sounds like you're saying you can't see it.
 
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