

Shadows?
In both the section and the full view of year 5 of the DESI scan, I notice a remarkably intact structure. But if I think about it like RADAR or LiDAR, I would expect to see shadows cast behind objects where light could not reached the scanner. Second question is how could DESI not punch through ANY of what I assume is the plane of the ecliptic that is cause the symmetrical scanning gap in the full view, if a can scan out extremely far in other areas.