"Faintest Moon Found Orbiting Icy Giant Planets by Subaru Telescope"

Using the Subaru Telescope, astronomers discovered three new moons orbiting Uranus and Neptune, with one around Uranus and two around Neptune. One of the new moons, S/2021 N1, is the faintest moon ever discovered by ground-based telescopes. The discoveries provide insights into the early solar system's history and the movement of planets on its outer edges, shedding light on the capture of outer moons and the chaotic nature of the early solar system.