Discovered in Arizona, Pluto gains support to be reclassified a planet

Discovered in 1930 at the Lowell Observatory, Pluto was demoted as a planet in 2006. Some want President Trump to take action ...
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New Pluto mission could uncover dwarf planet's hidden ocean — if the 'queen of the underworld' gets to fly

When NASA's New Horizons spacecraft sped by Pluto in 2015, it revealed an incredible world of ice and haze carved by various geological processes — hinting that an ocean may have played a role in the ...

Why isn't Pluto a planet anymore? Some want Trump to reverse demotion

Debate has raged for two decades over whether Pluto should be considered a planet. Some want President Trump to take action ...
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Lowell Observatory responds to Trump's efforts to 'Make Pluto Great Again'

President Donald Trump and his NASA administrator are reviving the Pluto debate again — apparently at the urging of “Star ...