  Modern radio astrometry has reached the limit of the resolution that is
determined by the size of the Earth. The only way to overcome that limit is to
create the radio telescopes outside our planet. It is proposed to build an
autonomous remote-controlled radio observatory on the Moon. Working together
with the existing radio telescopes on Earth in the VLBI mode, the new
observatory will form an interferometer baseline up to 410000 km, enhancing the
present astrometric and geodetic capabilities of VLBI. We perform numerical
simulations of Earth-Moon VLBI observations operating simultaneously with the
international VLBI network. It is shown that these observations will
significantly improve the precision of determination of Moon's orbital motion,
libration angles, ICRF, and relativistic parameters.
