Comparison of JWST and ALMA data for the Class 0 protostar Serpens SMM3. From left to right, (1) JWST NIRCam image of SMM3 using a combination of the F210M (blue), F360M (green), and F480M (red) filters from archival data of PID 1611; (2) ALMA image of the CO J=2-1 red and blue outflow lobes in the inner 10″ × 10″ together with the dust disk at 1.3 millimeter continuum emission (contours) (Tychoniec et al. 2021); (3) JOYS MIRI-MRS maps of the H₂ S(2) line at 12.28 μm, with the dotted line outlining the scattered light cavity seen with NIRCam; and (4) the [Fe II] line 5.34 μm, both in a zoomed-in region of 6″ × 6″. Beam sizes are indicated in the lower-left corner of each panel.