Two bright green comets are streaming through the skies and are visible to skygazers in the Northern Hemisphere. Both hail ...
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Sunward Jet of 3I/ATLAS Challenges Comet Physics

It shouldn’t be. Comet tails, propelled by the solar wind and radiation pressure from the Sun, nearly always travel away from the Sun. But interstellar object 3I/ATLAS, hurtling through the Solar ...