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We present a high resolution 1.6 GHz VSOP image of the southern blazar PKS1921-293. The image shows a typical core-jet morphology, consistent withground-based VLBI images. However, the addition of data from the space antennahas greatly improved the angular resolution (especially along the north-southdirection for this source), and thus allowed us to clearly identify the core.Model fitting reveals an inner jet component ~1.5 mas north of the core. Thisjet feature may be moving on a common curved path connecting the jet within afew parsecs to the 10-parsec-scale jet. The compact core has a brightnesstemperature of 2.6*10**12 K (in the rest frame of the quasar), an indication ofrelativistic beaming. We analyzed the source in terms of three models,involving the inverse Compton catastrophe, an inhomogeneous relativistic jet,and the equipartition of energy between the radiating particles and themagnetic field. Our analysis of this gamma-ray-quiet blazar shows no preferenceto any particular one of these models.Comment: 7 pages including 2 figures and 1 table, PASJLaTeX, accepted for  publication in PAS

High-Resolution VSOP Imaging of the Southern Blazar PKS 1921-293 at 1.6 GHz