10.03.05 - After orbiting the Earth for more than 17 months, Gravity Probe B prepares to test Einstein's general theory of relativity.
05.03.05 - Is Einstein's general theory of relativity correct? Gravity Probe B tests two extraordinary predictions of that theory.
05.03.05 - Is Einstein's general theory of relativity correct? Gravity Probe B tests two extraordinary predictions of that theory.
04.20.04 - Gravity Probe B prepares to test Albert Einstein's general theory of relativity.
04.16.04 - A 'short visit' to the United States lasted 40 years for Gravity Probe B's lead scientist.
04.02.04 - A NASA spacecraft testing two important predictions of Albert Einstein's general theory of relativity readies for launch.
02.28.02 - The NASA Gravity Probe B (GP-B) Relativity Mission has successfully mated its science payload.