NASA’s James Webb Space Telescope has found a previously unknown moon orbiting Uranus. NASA announced the discovery on Tuesday, adding that the moon was first spotted on Feb. 2. Scientists estimate that the newly discovered moon is about six miles in diameter.

NASA said a tiny moon has been found by the Webb Space Telescope orbiting the planet Uranus. The moon is only six miles wide and was found by Webb’s near-infrared camera, The Associated Press reported. That’s about the length of a 10K. Scientists believe that it was missed for so long because it is tiny and is faint, the AP reported.

Scientists have discovered a new, elusive moon around Uranus, making it the 29th natural satellite known to orbit the ice giant. The research team that made the discovery estimates that the moon, dubbed S/2025 U1 for now (at least,