In the last decade, technological improvements in radio observatories have made possible some interesting studies both of cometary comae and of asteroid surfaces. New, more sensitive millimeter and sub-millimeter continuum receivers, particularly the wider employment of bolometers, have enabled rotationally-resolved observations of asteroid thermal emission, suitable for creating lightcurves. For the largest asteroids, such lightcurves are generally anti-correlated with visual albedo, but are surprisingly high in amplitude, well beyond the influence of the nonspherical shape of the bodies. High-amplitude variations for asteroid 4 Vesta have been seen both at 345GHz with the SMT and at 45GHz with the VLA. New L-band instruments at Arecibo have enabled detection and mapping of 18cm OH spectra from the comae of a wide sample of recent comets in the inner solar system. Long-period comets with more than an order of magnitude lower gas production than that of comet 1P/Halley have been detected and mapped, providing constraints on total gas production, gas outflow velocities, coma asymmetries and excitation conditions. Such ongoing observations not only provide valuable monitoring of "normal" comets, but also yield some interesting results that disagree with published predictions, particularly for coma excitation conditions. I will present some of our recent unexpected results on both asteroid thermal emission and cometary OH production.