The JPL release also captions the picture with "This artist's concept illustrates..." Engadget didn't even bother. I really hate it when that gets left out.

Thank you for the link. I didn't see it anywhere in the story. In fact, the "NASA" link doesn't even leave the site -- it just goes to stories with that tag!

Gruber had a story recently about attribution and credit that Engadget should read: http://daringfireball.net/2011/07/attribution_and_credit

There is a link to the press release[1] the bottom left, next to where it says "source" - All Engadget posts have it in the same place. Seemingly it's not prominent enough, but the attribution is certainly there.

[1] http://www.nasa.gov/topics/universe/features/universe2011072...

While true, it looks identical to the "NASA" link that precedes it that doesn't go externally, and so I skipped over it as I thought it was a duplicate.

Besides, is it possible to make an attribution less visible?

That's the Gruber way. Engadget prefers the AOL Way.