The James Webb Space Telescope ( JWST) is celebrating three years of transformational science with a striking new image of ...

This atmospheric drag will pull them into a circular orbit as early as 2034, ... Van Allen Probes Orbit Diagram (IMAGE) NASA/Goddard Space Flight Center. Caption.

Here's a diagram that may help. The angle of reflection from each drop is what gives a rainbow the circular shape. Or read more from the Physics Classroom here.