Pluto: the big-hearted dwarf + Katla Reawakening

Its career as a planet last for less than half its year. Pluto was discovered late, in 1930, as our final planet, completing the Sun’s brood of nine. (In hindsight it had been seen, but not recognized, as early as 1909.) But it was always an odd one, the runt of the litter, banished to…