35 Comments
- RealmDown, on 07/21/2008, -1/+22"What will become of these galaxies?"
They don't know, but the lawyers are already rushing to the scene. - alapoet, on 07/21/2008, -2/+16The stars are so far apart that it's actually unlikely any two will collide... But, as the caption states, there will be gravitational tides in the interstellar gas.
- DeskFlyer, on 07/21/2008, -0/+10"Quite possibly, our Milky Way Galaxy will undergo a similar collision with the neighboring Andromeda Galaxy in about five billion years."
That'd be cool to be around to see that thing approaching in the sky, bigger than the moon. Too bad our host star would be going OM NOM NOM on our ass by then. - inactive, on 07/21/2008, -2/+11Yea....Galaxy PORN!!!
- bngeodesic, on 07/21/2008, -1/+8five billion years till we do that... better make plans to move!
- Anomaly100, on 07/21/2008, -0/+5There is nothing so wondrous than to look up at the sky and know that all of this and so much more is up there. It's a beautiful thing.
- AmyVernon, on 07/21/2008, -0/+4lmao
- inactive, on 07/21/2008, -2/+6awsome!!!
- TheOle, on 07/21/2008, -1/+4Rule 34
- Kristijan12, on 07/21/2008, -0/+3The funny fact about colliding galaxies are that they are not actually colliding just merging.
Because space between stars and other galactic matter is so sparse that rare are the objects (if any ever) that are going to collide. - Andrwmorph, on 07/21/2008, -2/+5APOD always makes me feel insignificant in the whole scheme of things.
- Fejerro, on 07/21/2008, -0/+2Those two events might actually coincide, so just before our star dies on us, we may be able to jump on the Andromeda train and catch a different solar system as it passes by.
- mahsah, on 07/21/2008, -1/+3OH ***** IT'S THE SPIRAL NEMESIS
- cJw314, on 07/21/2008, -0/+2fta: "Quite possibly, our Milky Way Galaxy will undergo a similar collision with the neighboring Andromeda Galaxy in about five billion years."
DUCK! - inactive, on 07/21/2008, -0/+2i like how when i try to wrap my head around the mind crushing scale of this sort of thing after a few minutes my brain just gives up. its so rad. much love to who ever started submitting these. if all we got out of nasa were pictures like this, it would be worth every penny.
- Pedobear, on 07/21/2008, -0/+2WHO THE HELL DO YOU THINK I AM?!
- Kristijan12, on 07/21/2008, -1/+2The funny fact about colliding galaxies are that they are not actually colliding just merging.
Because space between stars and other galactic matter is so sparse that rare are the objects (if any ever) that are going to collide.
So we dont have to move. - ShadoCat, on 07/22/2008, -0/+1Yep. The radiation from star formation is likely to sterilize the near side of the "collision".
With any luck, in the next 5 billion years, we'll be off this rock already and the loss of the Earth will be nothing more than sentimental.
We have enough material in the asteroid belt to make enough space habitats to hold 1 billion times our current population. There is enough helium 3 on Neptune to move those habitats to another star. - iDiggIt42, on 07/21/2008, -0/+1It depends on which side of the galaxy we're on at the time. If we're on the trailing side, it'll be far less spectacular (but much safer).
- inactive, on 07/21/2008, -0/+1because you can pronounce APOD. APD sounds like some sort of bash command.
- WTF69, on 07/21/2008, -0/+1Why is it APOD shouldnt it be APD
- inactive, on 07/21/2008, -0/+1Why is god moving all this matter around out in space when we would never (normally) ever be able to see him doing it?
- fomalhaut, on 07/22/2008, -0/+1This was on Hubblecast HD a couple of weeks ago. Check it out, more of the photos and in high-def.
- inactive, on 07/21/2008, -0/+1What I am interested in is what will the effects of the tidal forces (they must be unimaginatively huge) of each galaxy upon the other be...
- vbullinger, on 07/21/2008, -0/+1I liked it better when you said it the first time.
- godfly, on 07/21/2008, -0/+1OM NOM NOM
- fadetoone, on 07/21/2008, -0/+1Just think... most of the "stars" behind those galaxies are MORE GALAXIES.
- zantos420, on 07/21/2008, -0/+1if at the center of these galaxies are black holes as suggested in theory, then i would assume that as the galaxies move closer together the gravitational pull will increase, increasing the speed by which they get closer together eventually ending up with two black holes slamming into each other... what happens when that happens is anyone's guess...
- crabsallover, on 07/22/2008, -0/+0God does not really exist - he is a figment of mans imagination.
- VirusUK, on 07/21/2008, -1/+1umm no most of the stars are in our own galaxy in the way of the telescope.
- marschat, on 07/22/2008, -0/+0Actually, astronomers have already made observations of galaxies that have moved through each other as well. see: http://www.universetoday.com/2006/08/21/galaxy-col ...
As several have said, the stars and dark matter pretty much move through without interacting too much because they take up so little space and the gravitational force is actually incredibly weak compared to all other known forces. The chance of the super-massive black hole centers moving close enough to interact is minuscule as well. However, because there is hydrogen gas pretty much everywhere in the interstellar medium the gas particles collide with each other (through the much stronger electromagnetic force) and end up behind the stars and gravitational centers of their respective galaxies. Galaxy collisions actually provide some of the hardest evidence for dark matter. It's pretty cool stuff. - oilcan, on 07/21/2008, -0/+0haven't you heard? The Lord works in mysterious ways! The answer to this and any difficult question has already been answered, a long time ago! Now quit trying to think or be clever, all it'll do is get you in trouble!
- DiggADD, on 07/22/2008, -0/+0My money is on the one on the right.. Get in early while the odds are high.
Hmmm now that I think about it.. STOP living in the past. - LandRvr, on 07/21/2008, -0/+0Our Universe(or more accurately Multiverse) has way more than 3 dimensions and has no middle and has no edge. And since time, or more accurately age is one of the multiverse dimensions, we could be looking at ourselves in some distant future. Thinking about it is akin to visiting "The Total Perspective Vortex".
- inactive, on 07/21/2008, -2/+1bow chigga bow wow



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