Astronomers say new interstellar visitor 3I/ATLAS is 'very likely to be the oldest comet we have ever seen'
Friday, July 11, 2025 - 12:50
in Astronomy & Space
3I/ATLAS isn't just fascinating because it is the third interstellar visitor found in the solar system; new research suggests it's also the oldest comet ever seen, at over 7 billion years old.