Interstellar comet 3I/ATLAS may be 12 billion years old – so its old star system may no longer exist.
The asteroid that recently dominated the headlines, 3I/ATLAS, may be between 10 and 12 billion years old, a new analysis of the isotopic composition of the comet has shown. This so-called “invader” in our planetary system is only the third object reported to enter our cosmic environment from beyond. If these predictions of new comet … Read more