[SunkenCiv]

[Credit: ESA/Hubble & NASA and the LEGUS Team; Acknowledgement: R. Gendler]

[soycd]

When it comes to infinite particles, size does not matter any more or less than it does.

[Purdue77]

Based on the aspect of the galaxy, when it starts to feed the gamma rays will spew out like a diet coke with mentos and all life on the earth will die. Wonder who the AGW crowd will blame for that? /sarc

What a wondrous place the universe is!

[TXnMA]

Thanks, SunkenCiv! You reminded that I should go to the APOD Archive and catch up on almost a month's APOD images.

(That's a special treat I give myself from time to time...)

As usual, I grabbed a few specially impressive images to "fuel" my screensaver (that almost always gets "OOOH!s" and "AAAH!s" from my audiences when I let my Mac rest for a bit while I answer questions... '-)

[henkster]

So many of these galaxies come with the description of being about 100,000 light years across and about the size of our galaxy. Is this the “default” size of spiral galaxies? How about an APOD of a real “super galaxy?”

[Sawdring]

If there was a great barrier to the radiation, I would love to see the view from a planet in the denser parts of the galaxy.