  We have used the Mid-InfraRed Instrument (MIRI) on the James Webb Space
Telescope (JWST) to obtain the first spatially resolved, mid-infrared (mid-IR)
images of IIZw096, a merging luminous infrared galaxy (LIRG) at $z = 0.036$.
Previous observations with the Spitzer Space Telescope suggested that the vast
majority of the total IR luminosity (LIR) of the system originated from a small
region outside of the two merging nuclei. New observations with JWST/MIRI now
allow an accurate measurement of the location and luminosity density of the
source that is responsible for the bulk of the IR emission. We estimate that
40-70% of the IR bolometric luminosity, or $3-5 \times
10^{11}\,{\rm{L_{\odot}}}$, arises from a source no larger than 175pc in
radius, suggesting a luminosity density of at least $3-5 \times 10^{12} \,
{\rm{L_{\odot} \, kpc^{-2}}}$. In addition, we detect 11 other star forming
sources, five of which were previously unknown. The MIRI F1500W/F560W colors of
most of these sources, including the source responsible for the bulk of the
far-IR emission, are much redder than the nuclei of local LIRGs. These
observations reveal the power of JWST to disentangle the complex regions at the
hearts of merging, dusty galaxies.
