Comet 3I/ATLAS may be around 7 billion years old, study suggests

Researchers have proposed that the interstellar comet 3I/ATLAS could be roughly 7 billion years old, a figure that would place its origins far back in the history of the galaxy. The estimate points to the object having formed in a distant stellar system well before the Sun existed. Such an age would make it an unusually ancient visitor passing through the solar system. Because the article text was not provided in full, the specific methods and evidence behind this estimate could not be verified here.