Mission Status
GP-B continues to make significant progress—fiscal and scientific. We have secured new funding outside NASA, and our science team is continuing to make large strides in the data analysis.
See our Mission Status Update for details
Six GP-B animations featured in our Media Gallery won a bronze Telly award. Also, view a video of Francis Everitt's talk at the Stanford Aeronautics & Astronautics Department's 50th anniversary celebration last May.
Read more on the Mission News page
Collaborators
GP-B Mission
GP-B was designed to measure two key predictions of Einstein's general theory of relativity by monitoring the orientations of ultra-sensitive gyroscopes relative to a distant guide star. Learn more about the mission.
Technology
Most of the technology required to bring GP-B to the launch pad did not exist when the experiment was conceived in 1959. Learn about the advances in engineering that made it all possible.
Einstein's Spacetime
How did Einstein revolutionize our concepts of space and time? Do they exist absolutely or relative to matter? And how does gravity fit in? Learn more about Einstein's universe.