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In July 2025, observations intensified. The Hubble Space Telescope targeted Threeey Atlas, capturing a faint, teardrop-shaped dust cloud, composed of ancient material frozen in ice for eons. The size of its nucleus was estimated to be about 5 km across (roughly 3 miles), a modest size but immense for objects traveling at such velocities.
Later, the James Webb Space Telescope analyzed its spectrum, revealing a dominance of carbon dioxide (CO₂) rather than water vapor—a striking deviation from typical solar system comets. This indicated Threeey Atlas had never approached a star before, preserving primitive material from the galaxy’s infancy.