21.   The picture seems to be lacking a regular pulse as it is.

22.   The picture seems to have been intended as a political satire, but only a Hollywood executive could mistake it for the real thing.

23.   The pictures seemed to support the assumption that beneath the frozen crust, the water enveloping Europa could be liquid or at least slushy ice.

24.   The pictures showed what seemed to be a primitive rural site with only small patches of paved roads, little security, no rail link.

25.   The tightly cropped picture seems hermetic, its perimeter a metaphor for the lives enclosed within.

26.   Today, the picture seems out of place with the air of solitude outside the conference hall.

27.   Will these pictures seem as astonishing to a future generation accustomed to spiffier technologies?