Figure 5. Laboratory stills.

Laboratory measurements of an iron meteorite sinking through ice as discussed in the Methods section. Depth (z-axis) in mm is taken relative to the upper ice surface. Shown are three side-view images of the meteorite sinking downwards, taken at 80-min intervals. The images relate to the first data point (0 min), fifth data point (80 min) and ninth data point (160 min) of Fig. 1 (right panel), of the meteorite starting from 14.9 mm encapsulation depth in the ice. To align these images with the results of Fig. 1 (which show the depth of the upper meteorite surface) one must subtract the meteorite width of 10 mm from the depth of the meteorite base, which are indicated by the white lines (the location of the base is easier to observe, due to the reduced amount of glare from the light source).