A new study reveals that global ocean analysis products can effectively replace expensive in-situ sound speed measurements for precise seafloor ...

However, new research has shown this potentially "water ice-rich" visitor could be even more extraordinary than initially ...

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.

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A mystery interstellar object discovered last week is likely to be the oldest comet ever seen – possibly predating our solar system by more than three billion years, researchers say. The "water ...

A mystery interstellar object discovered last week is likely to be the oldest comet ever seen—possibly predating our solar ...

When the news started to spread on July 1, 2025, about a new object that was spotted from outside our solar system, only the ...