This idea for construction of a differential gravimetric observatory is based on 'alternative theories': 'Higgs Loophole Gravity and Emergent Space', developed by myself and two colleagues. When I was attending the University of Maryland, College Park in the 1970s, Dr. Joseph Weber, a Navy trained engineer turned physicist attempted to acoustically isolate multi-ton solid aluminum cylinders with piano wire. Surrounding each cylinder was an array or ring of piezoelectric detectors which generated a voltage if any tidal forces from gravity waves happened by to warp any of the dimensions of the Weber bars. No confirmed measurement of a single gravity wave was recorded by any of the devices in College Park or elsewhere, other than the occasional acoustic rumble of trucks rolling up and down nearby US Rt 1. The idea was sound, after a fashion, but the sensitivity of the detectors fell short by tens, perhaps hundreds of orders of magnitude. LIGO has more recently used interferometry techniques similar to the old Michealson-Moreley experiment, using a single fixed position laser interferometer (rotates with the surface of the Earth over time). LIGO has not successfully demonstrated a single instance of a detected gravity wave either, nor has the experiment provided any engineering insight as to why this is the case. A plan by NASA to duplicate the same apparatus in space is likely to meet with the same lack of success, but this is not to say that the task is an impossible one. Quite the contrary. The LIGO facility has been roundly criticized, among other things, for specifying unobtainable flatness for their plane mirror assemblies. Obviously, this approach would make little difference if the cause of gravity itself is not sufficiently well understood. A new alternative theory of gravity is in the works that explains gravitation as the result of a continuously applied Higgs mechanism imparting energy 'acceleration' to space itself surrounding gravitating bodies. In this theory, only time and energy are fundamental. Both space and mass are emergent. As is already known in quantum mechanics in the Standard Model, time never runs at exactly the same rate at any two points in space on a quantum scale, nor in our scale in the space near gravitating bodies. Higgs Loophole Gravity and ES is consistent with both the Standard Model and General Relativity. A measurement of the differential temporal gradient using a spherically radial interferometer array compared with a reference timebase that is physically separated as far as possible from gravitationally interacting bodies such as local planets or moons should easily provide a means to finally succeed in measuring the strength of a passing gravity wave, and most importantly, its predominant direction, where other engineering approaches have failed. This approach differs in many important respects from any previous attempts to construct an observatory capable of detecting gravity waves. A Lagrange point stationed near Earth would probably not work as the temporal reference, as these points are fast becoming filled with other experiments. The James Webb telescope scheduled for launch in 2018 is only one example. If someone wants to write a proposal for this project, you have my permission to proceed. This is the first of what I hope will be many practical applications of Higgs Loophole Gravitation.