The James Webb Space Telescope (JWST) has opened many wonders of the cosmos to scientists since it began science operations a few years ago. But one thing it hasn't done is find an "exomoon. " These still-theoretical moons orbit exoplanets in other star systems, and JWST was supposed to find a p...
Source: [Phys.org](https://phys.org/news/2026-09-jwst-tiny-moons-exoplanet-great.html)