  In addition to the large surveys and catalogs of massive young stellar
objects and outflows, dedicated studies of particular sources, in which
high-angular observations (mainly at near-IR and mm) are analyzed in depth, are
needed to shed light on the processes involved in the formation of massive
stars. The galactic source G079.1272+02.2782 (G79), a MYSO at about 1.4 kpc, is
an ideal source to carry out this kind of studies. Near-IR integral field
spectroscopic observations were carried out using NIFS at Gemini-North. The
spectral and angular resolutions, allow us to perform a detailed study of the
source and its southern jet, resolving structures with sizes between 200 and
300 au. As a complement, millimeter data retrieved from the JCMT and the IRAM
30m telescope databases were analyzed to study the molecular gas at a larger
spatial scale. The analysis of a jet extending southwards shows cork-screw like
structures at 2.2 um continuum, strongly suggesting that the jet is precessing.
The jet velocity is estimated in 30-43 km/s and it is coming to us along the
line of sight. We suggest that the precession may be produced by the
gravitational tidal effects generated in a probable binary system, and we
estimate a jet precession period of about 10^3 yr, indicating a slow-precessing
jet, which is in agreement with the observed helical features. An analysis of
H2 lines along the jet allows us to investigate in detail a bow-shock produced
by this jet. We find that this bow-shock is indeed generated by a C-type shock
and it is observed coming to us, with some inclination angle, along the line of
sight. This is confirmed by the analysis of molecular outflows at a larger
spatial scale. A brief analysis of several molecular species at millimeter
wavelengths indicates a complex chemistry developing at the external layers of
the molecular clump in which MYSO G79 is embedded.
