Webb Telescope Reveals Ancient Ice in Interstellar Comet 3I/ATLAS

Astronomers using NASA's James Webb Space Telescope have observed unusual ice composition in interstellar comet 3I/ATLAS, suggesting its ice grains may have formed 10 to 12 billion years ago in an extremely cold, low-metallicity protostellar cloud. This finding provides clues about the comet's origin and offers a rare glimpse into the early universe.