Ancient Alien Messenger or Cosmic Time Capsule? Interstellar Comet 3I/ATLAS Stuns Scientists with Secrets
Comet 3I/ATLAS, detected July 1, 2025 by Chile’s ATLAS telescope, is only the third-known interstellar object to enter the solar system. It sped past the Sun at 137,000 mph on a hyperbolic path, never coming closer than 1.8 AU to Earth. Analysis suggests it is over 7 billion years old and unusually rich in carbon dioxide, with little carbon monoxide and no iron gas detected.