Beautiful, very interesting images!, BUT...Photo Competitions: Give Away Your Best Images to Corporations to Use All Entries For Any Purpose For Free in exchange for some publicity and a chance at a small prize.
Re. the fine print in the competitions terms
The Headline Sponsor, Siemens, reserves the right to use the images for a period of 4 years, without payment, i) in connection with its sponsorship of the Competition, the Exhibition and the Society and also (ii) in connection with its other activities (and those of other members of the Siemens Group). Such use may be on the Internet, in tangible form, and in any other form or format.
brianj: So the earth really is round !
Its turtles all the way down.
You can check this Mars Rover self portrait image out in a high-resolution zoomable format here http://www.3d-360.com/117921flat