The hunt for a new Pluto

Something strange is going on at the outer reaches of the solar
system. One astronomer thinks it might be a Neptune-sized ninth
planet, and he’s on a quest to find it. That search is happening at
an enormous telescope on the summit of Maunakea, a dormant Hawaiian
volcano with a long astronomical and cultural history. But many
Native Hawaiian scientists are asking: What’s lost in the pursuit
of larger and larger telescopes? For more, go to
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