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Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...
A newly discovered ice comet from deep space may be over 7 billion years old, making it the most ancient comet scientists ...
NASA confirms the arrival of 3I/ATLAS, the third interstellar object. The ATLAS project spotted it in June 2025. Its speed ...
Scientists now say an interstellar comet discovered earlier this month could be one of the oldest that astronomers have ever ...
I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the ...
Solar System Planets. Astronomy articles on the eight planets, plus the two dwarf planets, Pluto and Eris. Great pictures of everything in the solar system. Updated daily.
Officially named 3I/ATLAS, the comet was confirmed as having originated outside of Earth's solar system on July 3, according ...
Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...
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