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asdfoster  ·  3203 days ago  ·  link  ·    ·  parent  ·  post: Pluto has a tail!

    If there was a giant impactor that split the proto-Pluto into the current Pluto system, should there not be some scars from that?

No. Not necessarily.

Pluto has a very active geology. It is very possible that this event happened long enough in the past that all evidence has been wiped away, or covered by the deposition of ices from its atmosphere.

EDIT: This active geology is also why we see so few craters.