Two more of NASA's space telescopes got another look at comet 3I/ATLAS, an interstellar interloper that captured the world's attention in July 2025.

NASA's James Webb Space Telescope has made its first observations of interstellar comet 3I/ATLAS, revealing that the comet appears to be unusually rich in carbon dioxide.

NASA observed interstellar comet 3I/ATLAS through the lens of the James Webb Space Telescope for the first time.