Extended Data Fig. 2: OSIRIS colour composites of skull-top boulders.
From: The Philae lander reveals low-strength primitive ice inside cometary boulders
(In a–h, the boxed feature in the main image is shown magnified in the inset. In i, j, no magnification is required.) a, b, Pre-landing images of skull-top boulders. RGB setting; ‘green’ = F24 (480.7 nm), ‘red’ = F22 (649.2 nm), ‘blue’ = F16 (360.0 nm). c–e, Skull-top boulders observed in December 2014. RGB setting; ‘green’ = ‘red’ = F22 (649.2 nm), ‘blue’ = F24 (480.7 nm). f–i, The skull-top boulders observed in March 2016. RGB setting; ‘green’ = ‘red’ = F22 (649.2 nm), ‘blue’ = F24 (480.7 nm). j–m, Colour composite of the skull-top boulders in early and mid-June 2016 with the brightly lit ice feature visible in k–m specifically. RGB setting; ‘green’ = F24 (480.7 nm), ‘red’ = F22 (649.2 nm), ‘blue’ = F16 (360.0 nm).
