  The recent results obtained by the modern telescopes and spacecrafts allow us
for the first time to compare directly the mass, spatial density and size
distribution of the dust grains in the regions of their production, processing
and consumption in our Galaxy. The ALMA and VLT/SPHERE telescopes allow us to
estimate the production of the dust by supergiants and collapsing core
supernovae. The 2MASS, WISE, SDSS, Planck and other telescopes allow us to
estimate the processing of the dust in the interstellar medium. After renewed
Besan\c{c}on Galaxy model the medium appears to contain about half the local
mass of matter (both baryonic and dark) in the Galactic neighborhood of the
Sun. The Helios, Ulysses, Galileo, Cassini and New Horizons spacecrafts allow
us to estimate the consumption of the dust into large solid bodies. The results
are consistent each other assuming the local mean spatial density of the dust
is about of $3.5\times10^{-26}$ g/cm$^3$, mean density of the grain is about 1
g/cm$^3$, and the dust production rate is about of 0.015 Solar mass per year
for whole the Galaxy.
