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Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...
Interstellar object headed towards Mars, but poses no threat to Earth, says head of planetary defence at the ESA.
I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the ...
For years, astronomers have been searching for a mysterious ninth planet lurking in the dark outer reaches of our solar ...
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