[brmj]

Is that a real photo? The atmosphere is thicker than I'd expect and something about it looks subtly wrong.

[steren]

Yes it's a real photo, have a look to the description http://www.flickr.com/photos/gsfc/6760135001/in/photostream/

Most Amazing High Definition Image of Earth - Blue Marble 2012 A 'Blue Marble' image of the Earth taken from the VIIRS instrument aboard NASA's most recently launched Earth-observing satellite - Suomi NPP.