NASA Compared Pluto's Moon Charon To 'The Incredible Hulk' (nasa.gov)

MarkWhittington writes: NASA's New Horizon spacecraft has shown Pluto to be an active world that is far more interesting to scientists than anyone imagined when the probe was launched about ten years ago. Pluto's moon Charon has also proven to be a world of interest, not the least because of how it formed and then expanded billions of years ago.

The surface of Charon is covered with ridges, scarps, and valleys. One of the latter is, at least, four miles deep. Scientists suggest that in the distant past Charon expanded, pulling about much like the comic book character Bruce Banner bursting through his clothes as he changes into the Incredible Hulk.