  Two-pion correlation functions in Au+Au collisions at $\sqrt{s_{NN}} = 130$
GeV have been measured by the STAR (Solenoidal Tracker at RHIC) detector. The
source size extracted by fitting the correlations grows with event multiplicity
and decreases with transverse momentum. Anomalously large sizes or emission
durations, which have been suggested as signals of quark-gluon plasma formation
and rehadronization, are not observed. The HBT parameters display a weak energy
dependence over a broad range in $\sqrt{s_{NN}}$.
