  DarkSide-50 is the first physics detector of the DarkSide dark matter search
program. The detector features a dual-phase underground-argon Time Projection
Chamber (TPC) of 50 kg active mass surrounded by an organic liquid-scintillator
neutron veto (30 tons) and a water-Cherenkov muon detector (1000 tons). The TPC
is currently fully shielded and operating underground at Gran Sasso National
Laboratory. A first run of 1422 kg-day exposure with atmospheric argon
represents the most sensitive dark matter search using a liquid argon target.
The TPC is now filled with underground argon, greatly reduced in 39Ar, and
DarkSide-50 is in its final configuration for an extended dark matter search.
Overviews of the design, performance, and results obtained so far with
DarkSide-50 will be presented, along with future prospects for the DarkSide
program.
