  We present results on rapidity and transverse momentum distributions of
inclusive charm quark production in heavy-ion collisions at RHIC, including the
next-to-leading order, $O(\alpha_s^3)$, radiative corrections and the nuclear
shadowing effect. We find the effective, nuclear K-factor to be $K(y)\approx
1.4$ for $\mid y\mid \leq 3$ in the rapidity distribution, while $1\leq
K(p_{T}) \leq 3$ for $1GeV\leq p_T \leq 6GeV$ in the $p_T$ distribution. We
incorporate multiple parton scatterings in our calculation of the fraction of
all central events that contain at least one charm quark pair. We obtain the
effective $A$-dependence of the charm cross sections. Finally, we comment on
the possibility of detecting the quark-gluon plasma signal as an enhanced charm
production in heavy-ion collisions at RHIC.
