Pluto’s Planet Status Debate | Lincoln News

Pluto’s planetary status was stripped in 2006 after the IAU redefined what counts as a planet — but the debate’s far from over. With Eris’s discovery forcing a choice, Pluto lost its crown for failing to clear its orbit. Yet, New Horizons’ 2015 flyby revealed a surprisingly active, mountainous world, reigniting passion for its planetary identity. Scientists like Alan Stern still argue dwarf planets deserve planet status — and with new cosmic discoveries blurring the lines, the definition may need a rethink.

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