Protoplanetary objects of achievement

As we await the data from today’s close flyby of Pluto, here is an updated version of this montage of the objects of current interest to scale, with the last pre-flyby image from New Horizons.  A couple of other icy moons (or indeed, watery moons) have been added.

(Also: Damian Peach’s compilation of New Horizons images was used yesterday by the BBC web site to illustrate the Pluto story.) 

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