the presence of one such object in the small area subtended by the Near-infrared Camera and Multi-object Spectrograph (NICMOS) UDF, suggest that UV-faint objects, if indeed at such high redshifts, contribute as much to the stellar mass density at $z\sim6.5$ as rest-frame ultraviolet-bright Lyman break galaxies. Since the age of the stellar population in JD2 is thought to be $\sim$600 Myr, galaxies like JD2 might harbor remnants of the first epoch of star-formation, and play an important role in the reionization of the intergalactic medium (IGM). Such an object, if truly at high redshift, would challenge current models of galaxy formation, which do not predict a large number density of galaxies more massive than 10$^{11}$ M$_{\sun}$ at $z>6$ [@Dave:06].

The photometric redshift solutions in @Mobasher favor a $z\approx6.5$ solution but provide a 15% probability that the source is at $z<5$, with the most likely alternative solution implying a dusty galaxy at $z\approx2.5$. There are a few inconsistencies in the high-redshift interpretation of JD2. The optical/near-infrared SED is best fit by a template without significant extinction or star-formation. However, the object is detected in the Great Observatories Origins Deep Survey (GOODS) [[*Spitzer*]{}]{} Multiband Imaging Photometer and Spectrometer (MIPS) 24$\mu$m survey with 