Hypothesis was come upon when I saw the first images of Enceladus, could see three obvious strikes, developed an idea of what I thought the rest of the surface of the moon would look like, ended up being 95% right about five strike impact being explanation
for plumes and most surface features. Tried to tell Dr. Porco on CICLOPS in 2005 what I saw but she had already disagreed with another person who suggested he saw an impact in the images. When I first saw "heart-shaped" feature on Pluto I could see an obvious
large, very geologically young impact crater at Sputnik Planum, with many secondary effects that explain almost all previous, current, and future observations of New Horizons at Pluto. In the young geology map of Sputnik Planum released two weeks
after I stated this on Google+ and Twitter, think I can see four impacts coming from southerly direction with impactor rotating clockwise as it strikes. Tartartus Dorsa is the material thrown up by the impact refreezing onto the surface of Pluto afterwards.
This explains the pattern on the surface, the unusual composition, and its very presence. Piri Planitia and other such features are secondary impacts. Convection did occur after impact pushing the old surface (the Montes) toward the edges of the spherical
impact site with the ice volcanos and glacial activity side effects of the heating and cooling of the surface material. Have been reading this site for ten years but this is my first attempted post. Am working on more detailed, coherent explanation with pictures.


Kenneth G. Tompkins