  The heaviest known Fermion particle -- the top quark -- was discovered at
Fermilab in the first run of the Tevatron in 1995. However, besides its mere
existence one needs to study its properties precisely in order to verify or
falsify the predictions of the Standard Model. With the top quark's extremely
high mass and short lifetime such measurements probe yet unexplored regions of
the theory and bring us closer to solving the open fundamental questions of our
universe of elementary particles such as why three families of quarks and
leptons exist and why their masses differ so dramatically.
  To perform these measurements hundreds of millions of recorded
proton-antiproton collisions must be reconstructed and filtered to extract the
few top quarks produced. Simulated background and signal events with full
detector response need to be generated and reconstructed to validate and
understand the results. Since the start of the second run of the Tevatron the
D0 collaboration has brought Grid computing to its aid for the production of
simulated events. Data processing on the Grid has recently been added and
thereby enabled us to effectively triple the amount of data available with the
highest quality reconstruction methods.
  We will present recent top quark results D0 obtained from these improved data
and explain how they benefited from the availability of computing resources on
the Grid.
