The central 5' of the Orion Nebula has been mapped with 1' resolution at 50 ..mu.. and 100 ..mu.., using the NASA 91 cm Airborne Infrared Telescope; a new 20 ..mu.. map with similar resolution is presented as well. At all three wavelengths a pronounced maximum in the surface brightness is observed at the infrared cluster, where the total 10 to 1000 ..mu.. luminosity into a 1' beam is approx.7 x 10/sup 4/ L/sub sun/. The spatial and temperature resolution of these data allow us to reach the following conclusions about the nature of the far-infrared emission from this source: The total luminosity of the infrared cluster is in excess of 1.2 x 10/sup 5/ L/sub sun/. Heating by both the infrared cluster and the Trapezium stars is important in producing far-infrared emission associated with the central ridge of the molecular cloud. The infrared cluster is located within the molecular ridge, and the Trapezium stars are probably no further than 0.1 pc from the molecular cloud. Far-infrared emission is seen from an optically prominent ionization front to the southeast of the Trapezium. The emission is produced by material at or near the H I--H II boundary which is heated directlymore » by the Trapezium stars. (AIP)« less