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3I/ATLAS

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Swift Detects Water From Interstellar Comet 3I/ATLAS Far From the Sun

The ultraviolet finding signals vigorous activity at long range, prompting coordinated spacecraft follow-up to clarify the object's makeup.

ESA Mars Orbiter Captures Closest View of Interstellar Comet 3I/ATLAS

Interstellar Comet 3I/ATLAS Makes Closest Pass to Mars as Spacecraft Observe

3I/ATLAS Shows Growing Tail and Rapid Brightening as Evidence Favors a Natural Comet