![Artwork by Barron Storey of Gravity Probe B: Spacecraft and Orbit](https://www.nasa.gov/wp-content/uploads/2023/03/10_earthsat.jpg)
Spacecraft and Orbit
Measuring 5 meters long and 1.6 meters in diameter, the fully integrated Gravity Probe B spacecraft was a remarkable example of complete synchronicity of vehicle and experiment.
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https://www.nasa.gov/image-detail/spacecraft-orbit/
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