Spacecraft Demonstrates Einstein Theory

By Frank Morring, Jr. .

NASA’s $700 million Gravity Probe B (GP-B) experiment has demonstrated two key aspects of Albert Einstein’s General Theory of Relativity, but not to the hoped-for degree of confidence because of the complexity of making the extremely subtle measurements in space.

The project generated valuable technology and scientific spin-offs, including 100 new Ph.D. scientists whose ...

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