Science Quickly Finding Pluto’s Potential Replacement with a Giant New Telescope
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Jan 10, 2025 Clara Moskowitz, Senior Editor for Space and Physics at Scientific American, discusses the intriguing possibility of finding a true Planet Nine lurking in the outer solar system. She delves into Pluto's controversial reclassification and what that means for celestial research. The conversation takes a fascinating turn as she highlights the Vera Rubin Observatory's potential to unlock cosmic mysteries. With evidence from unusual orbits and the exciting implications of dark matter, this chat combines science with a hint of humor on the ongoing Pluto debate.
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Potential Planet Nine
- Planet Nine, a hypothetical planet, may exist in our solar system, potentially 5-10 times Earth's size.
- This planet could be located far beyond the known planets, making its discovery challenging.
Pluto's Demotion
- Pluto's demotion to dwarf planet status stemmed from its inability to clear its orbit, a key criterion for planets.
- This reclassification arose from the discovery of Eris, a celestial body larger than Pluto, prompting a formal definition of 'planet'.
Unusual Orbits
- Objects like Sedna have unusual orbits, far more elongated and tilted than other planets.
- Their existence suggests a potential hidden planet influencing their paths gravitationally.