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Gravity Probe B
Testing Einstein's Universe
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Measuring the Proper Motion of Guide Star, IM Pegasi, with VLBI
Excerpt from the movie, Testing Einstein's Universe, 2003
Copyright ©2003 by
Norbert Bartel
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Duration: 4 Minutes 20 Seconds
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of Measuring the Proper Motion of Guide Star, IM Pegasi, with VLBI
