I heard that if our solar system passed through a nebula the dust alone would block the sun for billions of years before we came out the other side. This is a beautiful spectacle. Thanks.
Yes, but even if (most probably when) our galaxy collided with another, the effects on our planet would most likely be unnoticeable (especially considering we probably won't be around). Great wall, I've admired this image forever...
There is a pleasure in the pathless woods,
There is a rapture on the lonely shore,
There is a society, where none intrudes,
By the deep Sea, and music in its roar,
I love not man less, but Nature more
--Lord Byron
The galaxy on the right is acutally stealing the material from the galaxy on the left. What will happen next is the galaxy on the right will begin its second phase of being a red giant. So we are actually seeing a process that will take about 10 to 20 million years to complete. Awesome, ain't it?
Everytime I see a picture of a galaxy like that, I get chills. Galaxies are on average 100,000 lightyears accross in distance. That is just incomprehensible to imagine, yet we see them on that image. Gorgeous image. NASA just blows me away with each image they release. Thanks for sharing this image with us!
Correction to WingTipMickey's comment, when the two galaxies collide, the two black holes in their center would merge creating a new bigger galaxy, that rotates faster than the old two. Oh and, Red Giants are stars dude, how would two galaxies with a black hole in each of them turn into a star?
As a comment to the picture: Awesome picture.. Bravo NASA..
It's my understanding that galaxies "colliding" generally don't find any of their components impacting each other, at least minimally. There is too much empty space between stars. But, the gravity would rend them from one shape to another (galaxies, that is).
The "people" on the left-most side, however, may not have seen what's happening on the right-most side, as the light would take nearly a 1/4 million years to get across. It's taken several million (however far away this is) years for us to see this snapshot in time.
Aside from the astounding size and distance involved, as well as the several billion stars populating just these two "collectives", this is one of the most artistic of galactic images... it looks like a giant swath of sparkle dust eddying around, something like Nike5000AD might have come up with for a logo. Many thanks for sharing this with us.
Well, don't worry cause in 13 million years our galaxy is going to collide with the andromeda galaxy, so you all can experience that beauty eventually. lol Even though noone would survive.... Oh and it might be billion instead of million. Close enough though....