Most Blue Skies was a work of art by London-based Danish artist Lise Autogena, and her English colleague, Joshua Portway. The work was presented at the Re:Think exhibition, in 2009. Re:Think was a large Nordic art and culture project on climate change and contemporary art. The work gathered data from satellites and meteorological stations from all over the world, and based on these data, determined where the sky was bluest. The work was exhibited in two parts: one was a world map, where one could see the readings for the geographical positions, the other a screen, filled with the exact shade of blue as that of the bluest sky.