Can you explain why NASA has made the controversial decision to downgrade Pluto's status from a planet to a dwarf planet? What scientific reasoning lies behind this change in classification? Was it due to Pluto's small size or its elliptical orbit, or perhaps some other factors? How does this decision impact our understanding of the solar system and the definition of what constitutes a planet?
6 answers
amelia_doe_explorer
Mon Sep 16 2024
The International Astronomical Union (IAU) has defined a dwarf planet as a celestial body orbiting the Sun, possessing a nearly spherical shape due to its own gravitational pull, yet failing to clear its orbital path of surrounding debris.
Davide
Sun Sep 15 2024
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HanjiArtistry
Sun Sep 15 2024
This classification was established in 2006 through an IAU resolution, marking a significant milestone in the scientific understanding of our solar system's diverse range of planetary bodies.
TaekwondoMaster
Sun Sep 15 2024
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Eleonora
Sun Sep 15 2024
Pluto, once considered the ninth planet in our solar system, falls under the category of dwarf planets as it fulfills the criteria set forth by the IAU.