  We have targeted the dusty symbiotic mira system HM Sge with four instruments
from the IR to the UV. We have used these observations along with archival
observations to study how the system has been evolving after its 1975 nova-like
outburst. We have detected ro-vibrational water emission in a symbiotic system
for the first time using new EXES high spectral resolution infrared
spectroscopy. The features, detected in emission, have velocities consistent
with the systemic velocity but do not show any clear evidence of high velocity
outflows. Mid-infrared photometry and grism spectroscopy show that the
oxygen-rich Asymptotic Giant Branch (AGB) dust and dust output has shown little
to no change over the past 39 years. In the optical/UV, we detect three main
[NII] nebular features that were detected 22 years ago. Two of these features
show a small amount of movement corresponding to average outflows speeds of 38
kms and 78 kms since they were previously observed; some previously detected
[NII] features are no longer visible. New UV spectroscopy has shown that the
nebular environment continues to steadily relax after the system's 1975
outburst. The data suggest however, that the hot component has increased in
temperature from 200,000 K in 1989 to now greater than 250,000 K. Our new and
archival observations suggest that the evolution of the system after its
outburst is swift with little to no major changes after a period of a couple
years.
