There’s been renewed discussion among astronomers and skywatchers about whether the interstellar comet 3I/ATLAS has shifted its trajectory as it continues its journey out of the solar system. After its closest approach to Earth on December 19, 2025, scientists have been tracking the comet’s brightness, motion, and composition — and the question of trajectory changes naturally arises.
In this video, Lisa Cabrera explains:
• What the predicted orbit of 3I/ATLAS was
• What updated observations show about its path
• Why comets can appear to change course (outgassing, solar pressure)
• What established orbital mechanics tells us
• What astronomers actually mean when they update a “trajectory”
• Where 3I/ATLAS is headed next
This explanation is based on astronomical data and scientific analysis, not speculation.
📍 GEO Focus: Global science and astronomy interest.
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