hrmmm?... the first link is where I downloaded it from, the second link is a thumbnail that comes from NASA. I was searching the Creative Commons area. It's that famous Galaxy Cluster photo that was all over the news a while back. A public domain thing.

If it's not okay, please just tell me and I'll replace it, but it matched to scene so well I'd like to keep it.

I'm pretty sure the 3rd link is the correct source. There's even a CC usage link at the base of the picture. I know I downloaded it from the first link. NASA has tons of great images, they're just a pain in the neck to download

No fault on your part author, since the funding was cut for NASA the easier to use website was taken down. As long as we can see the image and the NASA name the source is okay to use.

Thank you, and that explains a WHOLE lot about the NASA CC site. I was wondering why it was so wonky. It was so much easier to search it before, now it's set up like a den of tigers... by nerds.