  Many recent discoveries in astrophysics involve phenomena that are highly
complex. Carefully designed experiments, together with sophisticated computer
simulations, are required to gain insights into the underlying physics. We show
that particle accelerators are unique tools in this area of research, by
providing precision calibration data and by creating extreme experimental
conditions relevant for astrophysics. In this paper we discuss laboratory
experiments that can be carried out at the Stanford Linear Accelerator Center
and implications for astrophysics.
