The results from NASA’s Gravity Probe B satellite has now been completely analyzed and published in the physical review letters. The satellite mission was aimed at measuring the “frame-dragging” or gravitomagnetic effect that was derived from Einsteins general theory of relativity a century ago. The results verified Einsteins results to a high degree. It is remarkable that Einsteins general theory of relativity – now about a hundred years old – still remains the best theory of gravitation known to man.

File:Gravity Probe turning axis.gif

(Illustration: Nasa 2004)