Something Too Unbelievable Is Happening With 3I/ATLAS

HUGE 3I/ATLAS Updates as Scientists Reveal Shocking Anomalies After Passing Earth.
📚 Sources:
Eric Keto and Abraham Loeb paper "The physics of cometary antitails as observed in 3I/ATLAS" Monthly Notices of the Royal Astronomical Society 2025
Avi Loeb Medium article "3I/ATLAS Sheds Particles that Are Much Bigger Than Common Sunlight-Scattering Dust" December 25 2025
David Jewitt and Jane Luu Nordic Optical Telescope observations November 2025
Hubble Space Telescope imaging July 21 2025 and November 30 2025
James Webb Space Telescope NIRSpec composition data August 6 2025
Martin Cordiner et al JWST observations carbon dioxide to water ratio 7.6 to 1
John C. Forbes and Harvey Butler paper arXiv 2512.18341 one kilometer size estimate December 2025
Richard Cloete Avi Loeb Peter Veres paper arXiv 2509.21408 five kilometer minimum September 2025
What We Cover:
🔬 100 micrometer dust particles one million times heavier than normal comet dust
💨 Particle ejection speeds 2 meters per second versus 500 meters per second for gas
🌟 Anti-tail extending 400,000 kilometers toward the Sun defying physics
⚖️ One kilometer versus five kilometer size contradiction explained
🧊 Water ice fragments driven by carbon dioxide sublimation never seen before
📊 Non-gravitational acceleration physics momentum depends on velocity not just mass
🔭 How slow heavy particles create less acceleration than fast light gas
❄️ Carbon dioxide ice 87 percent composition versus 4 percent water flipped ratio
🚀 Ice fragment theory by Loeb and Keto first documented anti-tail mechanism
⚛️ David Jewitt conservative natural explanation large rocky dust alternative
Key Topics:
3I/ATLAS releasing 100 micrometer radius dust particles December 2025 discovery confirmed independently by Avi Loeb Harvard and David Jewitt UCLA. Particles are 100 times bigger and one million times more massive than typical 0.5 micrometer comet dust. Anti-tail structure extends 400,000 kilometers sunward equal to Earth Moon distance. Solar radiation pressure physics requires large particles to resist push and travel observed distances. Gas drag ejection limits create narrow physics window 1 to 100 micrometers for liftable particle sizes.
Size contradiction between one kilometer Forbes Butler estimate excluding dust momentum and five kilometer Cloete Loeb Veres minimum from zero acceleration detection. Large slow particles 2 meters per second create minimal acceleration compared to fast gas 500 meters per second explaining measurement discrepancy.
Ice fragment theory proposes water ice particles ejected by carbon dioxide gas sublimation creating unprecedented anti-tail mechanism. JWST measured 87 percent carbon dioxide mass composition versus 4 percent water reversed from normal solar system comets. Carbon dioxide sublimates colder temperatures driving initial ejection then water ice survives longer creating extended sunward structure. Loeb Keto MNRAS paper models ice fragments 100 micrometers surviving observed distances before complete sublimation. First ever documented ice-based anti-tail versus traditional rocky dust anti-tails from viewing geometry.
December 19 2025 closest Earth approach 269 million kilometers enables detailed spectroscopy determining ice versus dust composition resolving scientific debate.
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