The JWST has studied the chemical composition of a moon-forming disk circling a giant planet 625 light-years away.

How do you build a moon? The James Webb Space Telescope has just given us our best look

Source: space
Source Link: https://www.space.com/astronomy/james-webb-space-telescope/how-do-you-build-a-moon-the-james-webb-space-telescope-has-just-given-us-our-best-look