How most of the universe's visible mass is generated: Experiments explore emergence of hadron mass

Deep in the heart of the matter, some numbers don't add up. For example, while protons and neutrons are made of quarks, ...
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NASA Confirms 3I/ATLAS’ Unusual Acceleration as Spectral Data Deepens Rift

What can be inferred if a comet from another star system accelerates in a manner that our models cannot fully account for?