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I/ATLAS might be over 7 billion years old, a new study reports, which would make it the oldest comet known. But experts caution we need more data.
Scientists now say an interstellar comet discovered earlier this month could be one of the oldest that astronomers have ever ...
On July 1, scientists discovered a mysterious object hurtling through our solar system.  Nicknamed 3I/ATLAS, astronomers say ...
When the news started to spread on July 1, 2025, about a new object that was spotted from outside our solar system, only the ...