We report on the first space-VLBI observations of the OH34.26+0.15 maser in
two main line OH transitions at 1665 and 1667 MHz. The observations involved
the space radiotelescope on board the Japanese satellite HALCA and an array of
ground radio telescopes. The map of the maser region and images of individual
maser spots were produced with an angular resolution of 1 milliarcsec which is
several times higher than the angular resolution available on the ground. The
maser spots were only partly resolved and a lower limit to the brightness
temperature 6x10^{12} K was obtained. The maser seems to be located in the
direction of low interstellar scattering, an order of magnitude lower than the
scattering of a nearby extragalactic source and pulsar.Comment: 8 pages, 2 tables, 9 figures, accepted for publication in MNRA