I’m a sucker for crisp, clear space photography — my kids and I spend an inordinate amount of time digging into Google Earth — so I was happy to stumble upon this old 2009 blog post with 35 high-resolution astronomy images (from Wikimedia) that are in the public domain. Make sure you click the high-resolution links. Incredible detail in these.

[Earth hi-res link]

[Earth & Moon hi-res link]

[Earth-rise hi-res link]

[Moon hi-res link]

[Venus hi-res link]

[Mars hi-res link]

[Jupiter hi-res link]

[Saturn hi-res link]

Lots more good stuff here, including galaxies and nebulae.