Mysterious cosmic visitor targets NASA craft in rare encounter
A Mysterious Interstellar Visitor Approaches Scientists are puzzled as an interstellar object, 3I/ATLAS, appears to be reversing its thrust as it makes its way through our Solar System. This ancient visitor is on a trajectory that will bring it close to a NASA spacecraft in the coming weeks. The object is expected to pass near NASA's Europa Clipper and the European Space Agency's Hera spacecraft between October 25 and November 6. European researchers have released a pre-print study discussing this encounter, stating that the spacecraft will be "immersed within the ion tail of 3I/ATLAS, providing the opportunity to detect the signatures of an interstellar comet's ion tail." One of the most intriguing possibilities is the chance to study the comet's ion tail, a stream of charged particles extending millions of miles from the coma. Encounters with ion tails are rare and valuable because they offer a direct sample of material from beyond our Solar System. Histo...