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Hubble Space Telescope

Observations Imaging Techniques Chandra X-ray Observatory Chandra Observatory NASA James Webb Space Telescope Observations of 3I/ATLAS Keck Observatory Omega Centauri Star Cluster 3I/ATLAS

New Spectra Show 3I/ATLAS Is a Carbon‑Chain–Depleted Interstellar Comet With Weak CN Emission

Fresh datasets are refining its composition alongside its trajectory.

Hubble and Infrared Observations Show 3I/ATLAS Is an Active Interstellar Comet