Into the Impossible With Brian Keating The Fascinating Hunt for a Mysterious Ninth Planet [Ep. 488]
Apr 20, 2025
In this engaging discussion, astronomer Mike Brown, known as the "Pluto Killer," reveals the truth behind Pluto's demotion and the heated debates that followed. He shares his experiences with ethical dilemmas in astronomy, including the controversy over Haumea's discovery. The search for the elusive Planet Nine takes center stage, delving into how it might influence the solar system. With humor and insight, Brown also addresses the evolving definitions of planets in light of groundbreaking discoveries, highlighting the fascinating interplay between science and public perception.
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Why Pluto Was Demoted
- Pluto was demoted because it belongs to a new class of Kuiper belt objects, not planets.
- Mike Brown anticipated this reclassification but doubted astronomers and the public would accept it.
Understanding Planet Definition
- The planet definition is mainly to address Pluto's and Eris's classification.
- The key criteria distinguish planets by their orbit clearing dominance, not just shape or location.
Teach Scientific Ethics Early
- Scientists should have ethics training like in medical or law schools.
- Regular conversations about proper conduct with students help navigate research integrity challenges.
