Re:what happens if Frame Dragging isn't observed (Score 1)

What do you mean by detected vs. measured? Where has it been detected? How could it be detected without being measured? This experiment has its detractors, like Jerry Ostriker, theoretical physicist of Princeton, and Kenneth Nordtvedt, retired relativity expert from Montana State University. They think it is no longer necessary because frame dragging has already been measured in other ways, albeit less dramatically. A major concern is that the enormous amount of money it costs to launch GP-B (Gravity Space Probe B) will detract from resources that could be used, for example, to repair the Space Hubble Telescope. Celebrity astrophysicist Kip Thorne, on the other hand, believes that a direct measurement, with GP-B, will still be useful. So, what do you think? Can anyone cite examples of how frame dragging may have been proven already? Is this fifty year old, $700 million dollar experiment just a self-aggrandizing posture by physicists, dozens of whom received their PhDs working on it?