Something strange has entered our Solar System, and it's defying all predictions. The interstellar visitor, 3I/ATLAS, is behaving so erratically that it has forced NASA, the European Space Agency (ESA), and the International Asteroid Warning Network (IAWN) into an unprecedented monitoring campaign. Its arrival marks only the third time such an object has been identified, but this one is different.
The object is now on a trajectory that will intersect with two active spacecraft, offering a rare, if alarming, opportunity to study it up close.
