Pegasi, following the full-speed spin-up of gyro #2 yesterday. Each full-speed spin-up takes most of a day. Helium gas is flowed over the gyro for 90 seconds, and tests are run to ensure that the ...

A brief overview of polhode motion in the gyro rotors The gyroscope’s polhode motion is akin to the common “wobble” seen on a poorly thrown (American) football, though it shows up in a much different ...

Decades in the making, a space probe that delves into Albert Einstein's general theory of gravitation remains grounded on Earth, caught in its own space-time continuum of technical snags, costly ...

At five weeks past launch, the Gravity Probe B mission is now about half way through the Initialization and Orbit Checkout (IOC) phase of the mission. Thus far, the team has successfully transmitted ...

On April 20, a NASA rocket will lift off from Vandenburg Air Force Base carrying one of the most remarkable physics experiments ever attempted. Gravity Probe B will try to answer questions raised by ...