What is the Purpose of Gravity Probe B?
The scientific purpose of this project is to test Einstein’s theory of General Relativity. This theory has only been partially verified and is one of the least tested of all physical theories (for more information on the testing already done and alternate theories of gravity, reference The Story of Gravity Probe B). Until a theory is thoroughly tested, we cannot accept it as fact, and we cannot reliably base further theory or engineering on its postulates.
