GoKawiilWebb telescope shows Chariklo's rings shifting dramatically in a decade
Astronomers led by Pablo Santos-Sanz used the James Webb Space Telescope to re-observe a stellar occultation by Chariklo, a small icy body about 250 kilometers wide orbiting between Saturn and Uranus. Compared to the rings first detected in 2013, one of Chariklo's two narrow rings has become denser while the other has nearly disappeared, and the cause remains unclear.