First hi-res image of Pluto's surface from @NASANewHorizons NO CRATERS!pic.twitter.com/I5bfFCZqLW
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@xbtbtc @StartsWithABang + implies energy (probably radioactivity) driving the activity (not enough gravity for tidal power)
@NickSzabo4 Thank you. Radioactivity/energy from the sun, Pluto, or...? @StartsWithABang
@xbtbtc @StartsWithABang It would have to be interior energy: sun is just a slightly bigger star at that distance.
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