  We present unpublished Spitzer IRAC observations of the HH 1/2 young stellar
outflow processed with a high angular resolution deconvolution algorithm that
produces sub-arcsecond (approx. 0.6" - 0.8") images. In the resulting
mid-infrared images the optically invisible counterjet is detected for the
first time. The counterjet is approximately half as bright as the jet at 4.5
micron (the IRAC band that best traces young stellar outflows) and has a length
of approx. 10". The NW optical jet itself can be followed back in the mid-IR to
the position of the exciting VLA 1 source. An analysis of the IRAC colors
indicates that the jet/counterjet emission is dominated by collisionally
excited H2 pure rotational lines arising from a medium with a neutral Hydrogen
gas density of 1000-2000 per cubic cm and a temperature of 1500 K. The observed
jet/counterjet brightness asymmetry is consistent with an intrinsically
symmetric outflow with extinction from a dense, circumstellar structure of 6"
size (along the outflow axis), and with a mean visual extinction of Av=11 mag.
