Looking at the Sun on Mars

In this 360-degree projection, the Martian terrain around Opportunity surrounds a dome of sky. The zenith is at the center and north at the top. The image shows the nearly rover-killing faintness of the Sun (the black path) when the rover viewed the sky during a global dust storm in 2007. Scientists created this complex mosaic by combining 19 solar filter images taken every three sols for almost two years, a 6-frame multispectral column of sky images taken on a single sol, and the Lyell panorama taken inside Victoria Crater over two months.