If you haven’t yet voted, there’s still time to pick your favourite NASA Image of the Day from the 50 finalists.

Will you pick Antarctic warming trends or Fall Colours in Pennsylvania? Maybe you lean more towards the giant designs carved by Nazca in the Peruvian desert? Or a view of Earth from Saturn?

My vote is going to this 2002 image. Can you guess what it is? Answer below the fold. Voting ends April 27.

NASA says:

Though the above image may resemble a new age painting straight out of an art gallery in Venice Beach, California, it is in fact a satellite image of the sands and seaweed in the Bahamas. The image was taken by the Enhanced Thematic Mapper plus (ETM+) instrument aboard the Landsat 7 satellite. Tides and ocean currents in the Bahamas sculpted the sand and seaweed beds into these multicolored, fluted patterns in much the same way that winds sculpted the vast sand dunes in the Sahara Desert.

Image courtesy Serge Andrefouet, University of South Florida