The article reports "Early pictures from New Horizons showed a surprisingly young surface on Pluto, with a mountain range as high as 11,000 feet (3,500 meters). Believed to be about 100 million years old at most, this range likely points to recent geological activity on the surface, but it's unclear what caused it."
There are reports on this potential young age issue on Pluto. PLUTONIAN MOUNTS AREN’T ICE VOLCANOES,
https://skyandtelescope.org/astronomy-news/plutonian-mounts-arent-ice-volcanoes/
"The near-total absence of craters suggests this terrain might be only 1 billion years old. But that raises a question: What’s the heat source that would melt Pluto’s water-ice rock to become molten?"
My observation. Apparently some areas of Pluto do not date back 4.5 billion years old but much younger, in this report and example 1 billion years old, perhaps. Pluto could complete some 4 million revolutions around the Sun in one billion years. In 4.5 billion years, perhaps more than 18 million revolutions. Finding evidence for young surface(s) on Pluto is interesting in view of the postulated many millions of revolutions around the Sun required for the planet based upon the age of the solar system.
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