A conceptual image of the interstellar comet 3I/ATLAS as it streaks across the night sky. When astronomers first spotted the fast-moving object 3I/ATLAS hurtling through the solar system in July 2025, ...
When astronomers first spotted the fast-moving object 3I/ATLAS hurtling through the solar system in July 2025, speculation erupted online: was it another ʻOumuamua—or even an alien craft? Months of ...
NASA has now confirmed that 3I/ATLAS is not just another visitor from deep space but the largest interstellar comet ever measured, a frozen fragment of another star system sweeping through our own.
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