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Thanks, both. I did see those Hubble and am suitably blown away : ) Here is my full elephant trunk
http://www.pbase.com/mclemens1969/image/116390451/original

That's a spectacular image, deathcow! Well done indeed.
Reminds me of the new Hubble images NASA released a few days ago..
http://www.wired.com/wiredscience/2009/09/hubble_gallery/

It doesn't "make pritty images". It records data from space we cannot obtain from terrestrial sources. The fact that the Hubble has been positioned in orbit and had FIVE orbital servicings is an incredible testimonial to the American space program. And yes, the images produced are beautiful, helping to remind us that the Universe is an fascinating place with knowledge that will continue to help us evolve in many dimensions.

Wonder is my favourite feeling and thanks to US taxpayers and those good people at NASA I get to have a frequent fix courtesy of Hubble!

*promote

I think this is about the mission they just did?

this video may have better music, but this video on the same picture is more brainy
http://www.videosift.com/video/How-the-Hubble-Deep-Field-Was-Taken

If anyone is interested, here is an answer from a theoretical physicist.

Hubble discovered that the Universe is expanding. Hence, as you go backwards in time, there are two options. Either all matter (and space) collapses to an extremely small region at some finite time in the past, or it does not. Hawking showed that it does. This is called the Big Bang. At this point in time, the description furnished by the theory of general relativity breaks down. The idea is that a better understanding of how general relativity and quantum mechanics work together will explain what happens at this point in time, and before. However, this work is ongoing and a final answer is still lacking. Ask me again in 50 years.

A little history on the origins of the theory...

Georges Le Maitre: Catholic Priest and Astronomer who proposed the idea of the "primeval atom." His idea was actually considered to be absurd by the scientific community as it indicated a moment of creation. At the time scientist preffered the Static Universe.

Edwin Hubble: Of course you know this guy. He proved that the universe was expanding, providing evidence that supported the Big Bang Theory

CMB: A form of electromagnetic radiation filling the universe that must be explained by a model of the universe. From the wikipedia entry: "Although many different processes might produce the general form of a black body spectrum, no model other than the Big Bang has yet explained the fluctuations."

These are just some places to start researching of course...

The possibilities that Dr. Levin speaks of are just possibilties right now. They have not yet been given the status of Theory. All we know is that the Big Bang certainly happend... and it blows my mind every time I think about...

Tags for this video have been changed from 'Hubble, photo, space, galaxy' to 'Hubble, photo, space, galaxy, deep field, telescope, humbling image' - edited by EndAll

>> ^Mcboinkens:
WHile I understand two galaxies wouldn't look like that, would you care to explain the physcis behind it? There have been no instances that we know of where two galaxies collide head on perfectly like the rings above. I'm assuming it's because galaxies are largely empty space that does not move like smoke?


It's prob because galaxies are hundreds of thousands of light years across, and the incredible gravitational pulls of each galaxy will act on each other long before they physically touch. They won't transfer all their momentum in a radial direction like those smoke rings cuz of the gravity.

That's my bs, but here is a page from the official hubble site with lots of pics of colliding galaxies:
http://hubblesite.org/newscenter/archive/releases/2008/16/image

As mentioned and shown in part three @ 1:15 in this video.

Hubble Ultra Deep Field 3-D Fly-Thru
A flight through the Hubble Ultra Deep Field, the most distant visible-light view of the universe. The redshifts of 5,333 galaxies were converted to distances to assemble a 3-D model of the data. This scientific visualization flies through the data to showcase its true 3-D nature.
http://hubblesite.org/newscenter/archive/releases/2004/28/video/b/

Fucking amazing. That's yours?

In reply to this comment by deathcow:
Yep stars live a long time. Plus the galaxies are generally around also. The universe started out with a big bang, matter starts coallescing and forming structures. Dust clouds form into stars, stars get captured into clusters and galaxies, galaxies get trapped in galaxy groups and interconnected sheets of galaxies. The universe is expanding like a loaf of bread where all points are always getting farther away from all other points, but gravity can keep some of these structures together. The black holes at the centers of these galaxies are holding on to their stars.

I like to take 50+ exposures of galaxies I am working on, but nice results can be had with a lot less exposures, this is only 20 exposures: http://www.scopenews.com/m51postcard.jpg

>> ^joop:
>> ^Enzoblue:
And all those galaxies in that image have collapsed/blow up and are no longer there and haven't been for millions of years. That blows me away.

Well, the individual stars within them that actually gave off the light would be gone, but the galaxies themselves would still be there, perhaps giving off light with new stars.


The majority of those stars would still be present. There's a large variance in the lifespan of stars, inversely proportional to the mass of the star. The median mass of stars in our neighborhood is 0.5 solar masses. Stars such as our Sun will burn for about 10 billion years. Stars half the size of our Sun could have started burning when the universe formed and still be going.

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>> ^Enzoblue:
And all those galaxies in that image have collapsed/blow up and are no longer there and haven't been for millions of years. That blows me away.


Well, the individual stars within them that actually gave off the light would be gone, but the galaxies themselves would still be there, perhaps giving off light with new stars.