<ul data-eligibleForWebStory="true"><li>Astronomers discover potential oldest comet, 3I/ATLAS, predating solar system by billions of years.</li><li>Interstellar visitor with rich water ice composition challenges cosmic history understanding.</li><li>3I/ATLAS's unique origin, activity, and age sparks excitement and anticipation among astronomers.</li><li>Observations from Rubin Observatory and close approach promise valuable insights into cosmic past.</li></ul>

Scientists discover mysterious object that may be the oldest comet ever detected

Discover more