  The neutron-skin thickness of heavy nuclei provides a fundamental link to the
equation of state of neutron-rich matter, and hence to the properties of
neutron stars. The Lead Radius Experiment ("PREX") at Jefferson Laboratory has
recently provided the first model-independence evidence on the existence of a
neutron-rich skin in 208Pb. In this contribution we examine how the increased
accuracy in the determination of neutron skins expected from the commissioning
of intense polarized electron beams may impact the physics of neutron stars.
