SpaceTime: A mission with profound science at low cost

This is a MIDEX class mission that will carry a high precision clock to the vicinity of the Sun to measure relativistic effects related to time dilation in the immense gravity field. The results are expected to revolutionize our understanding of fundamental physics by this significant test of Einstein's Equivalence Principal. The architecture of the mission considers a low cost spacecraft that will be launched on a Solar Probe-like trajectory to the Sun. The simplicity of the instrument accommodation allows a very low cost and lightweight spacecraft configuration that can be launched on a low cost launch vehicle. This combination promises to yield profound new science at the very reasonable cost of a MIDEX mission.