Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Astronomy Picture of the Day -- Milky Way Galaxy Doomed: Collision with Andromeda Pending
NASA ^ | June 04, 2012 | (see photo credit)

Posted on 06/03/2012 9:08:20 PM PDT by SunkenCiv

Explanation: Will our Milky Way Galaxy collide one day with its larger neighbor, the Andromeda Galaxy? Most likely, yes. Careful plotting of slight displacements of M31's stars relative to background galaxies on recent Hubble Space Telescope images indicate that the center of M31 could be on a direct collision course with the center of our home galaxy. Still, the errors in sideways velocity appear sufficiently large to admit a good chance that the central parts of the two galaxies will miss, slightly, but will become close enough for their outer halos to become gravitationally entangled. Once that happens, the two galaxies will become bound, dance around, and eventually merge to become one large elliptical galaxy -- over the next few billion years. Pictured above is an artist's illustration of the sky of a world in the distant future when the central parts of each galaxy begin to destroy each other. The exact future of our Milky Way and the entire surrounding Local Group of Galaxies is likely to remain an active topic of research for years to come.

June 04, 2012

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: andromeda; apod; astronomy; catastrophism; science
Navigation: use the links below to view more comments.
first 1-2021-27 next last
[Credit: NASA, ESA, Z. Levay and R. van der Marel (STScI), and A. Mellinger]

1 posted on 06/03/2012 9:08:38 PM PDT by SunkenCiv
[ Post Reply | Private Reply | View Replies]

To: 75thOVI; agrace; aimhigh; Alice in Wonderland; AndrewC; aragorn; aristotleman; Avoiding_Sulla; ...



2 posted on 06/03/2012 9:09:52 PM PDT by SunkenCiv (FReepathon 2Q time -- https://secure.freerepublic.com/donate/)
[ Post Reply | Private Reply | View Replies]

To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...
NOTE: Partial Lunar Eclipse Tonight: Gallery of photogenic past lunar eclipses New England and eastern Canada will miss the entire eclipse since the event begins after moonset from those regions. Observers in western Canada and the USA will have the best views with moonset occurring sometime after mid-eclipse.

3 posted on 06/03/2012 9:11:49 PM PDT by SunkenCiv (FReepathon 2Q time -- https://secure.freerepublic.com/donate/)
[ Post Reply | Private Reply | View Replies]

To: SunkenCiv
I am just slightly more worried about this than I am about NASA’s other hobby horse Anthropogenic ( Global Warming, or is it Climate Change?!
4 posted on 06/03/2012 9:14:56 PM PDT by Jim from C-Town (The government is rarely benevolent, often malevolent and never benign!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

Bush’s fault.


5 posted on 06/03/2012 9:15:56 PM PDT by steve8714 (Who didn't already know Obama was our first gay President?)
[ Post Reply | Private Reply | To 1 | View Replies]

To: steve8714

LMAO! I guess I’ll have to adjust my maximum time setting in my Delorean!


6 posted on 06/03/2012 9:23:11 PM PDT by TheRhinelander
[ Post Reply | Private Reply | To 5 | View Replies]

To: SunkenCiv

Holy Clap!


7 posted on 06/03/2012 9:30:59 PM PDT by mylife (The Roar Of The Masses Could Be Farts)
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

Impossible to truly tell without long-term measurements from a third-person perspective.

I’m talking about hundreds of millions of years, and a distance of a few thousand light years away.


8 posted on 06/03/2012 9:31:51 PM PDT by wastedyears ("God? I didn't know he was signed onto the system.")
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv
The exact future of our Milky Way and the entire surrounding Local Group of Galaxies is likely to remain an active topic of research for years to come.

Should read, "... for billions of years to come."

9 posted on 06/03/2012 9:33:45 PM PDT by dr_lew
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

Question..if all started with a “big bang” from one point then shoun’t all galaxys be expanding away from that point and each other?


10 posted on 06/03/2012 9:37:04 PM PDT by tophat9000 (American is Barack Oaken)
[ Post Reply | Private Reply | To 2 | View Replies]

To: SunkenCiv

This is terrible news! The world populations should have a special tax levied on them to prevent this from happening!


11 posted on 06/03/2012 9:40:19 PM PDT by winner3000 (ss)
[ Post Reply | Private Reply | To 1 | View Replies]

To: tophat9000

You are not supposed to ask questions like that.

Now, go back in to the corner and stay there until we tell you you can leave!

CA....


12 posted on 06/03/2012 9:41:52 PM PDT by Chances Are (Seems I've found that silly grin again....)
[ Post Reply | Private Reply | To 10 | View Replies]

To: SunkenCiv

“George Noory .... call your office.”


13 posted on 06/03/2012 9:45:49 PM PDT by jmax (Be warned....I'm armed. Round is chambered, full magazine is inserted, safety is off.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: tophat9000; Chances Are
>> if all started with a “big bang” from one point then shoun’t all galaxys be expanding away from that point and each other?

> You are not supposed to ask questions like that.

In general you're correct, the universe is expanding.

However, in the expansion, there's still lots of opportunity for individual pieces to mix and recombine, dance around each other, etc. That's how structures like spiral galaxies formed in the first place -- they weren't created as spirals and so forth from the beginning -- they gained their shapes over immense stretches of time. On a smaller scale, explosions of huge stars or groups of stars stir the pot, black holes create distortions, etc. It's incredibly slow and stately, one might say graceful, in the literal sense of being an expression of God's Grace.

The Creation is beyond our comprehension, but it sure is pretty, and fun to marvel at.

14 posted on 06/03/2012 9:54:01 PM PDT by dayglored (Listen, strange women lying in ponds distributing swords is no basis for a system of government!)
[ Post Reply | Private Reply | To 12 | View Replies]

To: dayglored

“However, in the expansion, there’s still lots of opportunity for individual pieces to mix and recombine, dance around each other, etc.”

That’s what I also learned about the local bar down the street!


15 posted on 06/03/2012 10:14:59 PM PDT by Jack Hydrazine (It's the end of the world as we know it and I feel fine!)
[ Post Reply | Private Reply | To 14 | View Replies]

To: Jack Hydrazine
> That’s what I also learned about the local bar down the street!

I think that may have more to do with the distortions caused by black holes... ;-)

16 posted on 06/03/2012 10:38:04 PM PDT by dayglored (Listen, strange women lying in ponds distributing swords is no basis for a system of government!)
[ Post Reply | Private Reply | To 15 | View Replies]

To: tophat9000

There is no point in the universe which is the center of expansion. The universe is LIKE the surface of a sphere which is expanding ... every point on the surface is equivalent, and each point sees everything receding from it.

Ah, but how then can the Andromeda Galaxy be approaching us? The answer is that it is nearby, and the expansion is reflective of a tendency over a much larger scale. The collision of Andromeda with the Milky Way is a local event, like an asteroid strike on the earth.


17 posted on 06/04/2012 12:01:38 AM PDT by dr_lew
[ Post Reply | Private Reply | To 10 | View Replies]

To: Chances Are
You are not supposed to ask questions like that.

Don't wallow in your own ignorance. Just a tip.

18 posted on 06/04/2012 12:03:53 AM PDT by dr_lew
[ Post Reply | Private Reply | To 12 | View Replies]

To: SunkenCiv

The Milky Way has already collided with several other galaxies.

Still here.


19 posted on 06/04/2012 12:04:29 AM PDT by <1/1,000,000th%
[ Post Reply | Private Reply | To 1 | View Replies]

To: dr_lew; Chances Are
"Don't wallow in your own ignorance. Just a tip."



Then take off every Zig.

For great justice.

20 posted on 06/04/2012 1:59:22 AM PDT by shibumi (Cover it with gas and set it on fire.)
[ Post Reply | Private Reply | To 18 | View Replies]


Navigation: use the links below to view more comments.
first 1-2021-27 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson