The solar system is much more complicated now, astronomers say, than in 1930 when Clyde Tombaugh added Pluto to the inventory of wandering lights circling the Sun.
pluto moved closer to the sun
we cannot know from the text the exact movement patterns of pluto
( z1 move :ARG1 ( z2 planet :name ( z3 name :op "Pluto" ) ) :ARG2 ( z4 close :ARG1 z2 :ARG2 ( z5 sun ) :ARG2-of ( z6 have-degree :ARG1 z2 :ARG3 ( z7 more ) ) ) )