A team of astronomers announced Tuesday that a new satellite measuring roughly 90 football fields across was discovered around the seventh planet from the sun. The moon, which was first seen by NASA’s James Webb Space Telescope on Feb. 2, joins a busy neighborhood of 28 other known moons around Uranus.

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.