  We present new observations of the central 1 kpc of the M 82 starburst
obtained with the James Webb Space Telescope (JWST) near-infrared camera
(NIRCam) instrument at a resolution ~0.05"-0.1" (~1-2 pc). The data comprises
images in three mostly continuum filters (F140M, F250M, and F360M), and filters
that contain [FeII] (F164N), H2 v=1-0 (F212N), and the 3.3 um PAH feature
(F335M). We find prominent plumes of PAH emission extending outward from the
central starburst region, together with a network of complex filamentary
substructure and edge-brightened bubble-like features. The structure of the PAH
emission closely resembles that of the ionized gas, as revealed in Paschen
alpha and free-free radio emission. We discuss the origin of the structure, and
suggest the PAHs are embedded in a combination of neutral, molecular, and
photoionized gas.
