The unprecedented infrared capabilities, high sensitivity, and high angular resolution of JWST compared to its predecessors, Hubble and Spitzer, have opened a new window to study properties of dust from the peak epoch of cosmic star formation activity in the universe (z~1-2 or cosmic noon) to the reionization era. In this talk, I will present our results on the dust emission of cosmic noon galaxies and the UV attenuation at z>4. The cosmic noon results are from the SMILES survey, the largest MIRI survey with full 5 to 25um coverage in cycles 1-3. This extensive survey dissects the mid-infrared dust emission from both AGN and star formation processes within cosmic noon galaxies, extending our reach to galaxies with stellar masses an order of magnitude lower than ever observed before.
