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Gravity Probe and Dark Energy Detection Mission (GDM)

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Gravity Probe and Dark Energy Detection Mission (GDM)

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  • Author: Rashied Amini, Sheng-Wey Chiow, Curt Cutler, Olivier Doré, Jeffrey Jewell, Kris Pardo, Jason Rhodes, Ashmeet Singh, and Nan Yu
The Gravity probe and Dark energy detection Mission (GDM) concept is a proposed space experiment to directly detect dark energy in the solar system through measurements of deviations from the Newtonian 1/r2 gravitational field (Yu 2019). It would consist of four spacecraft in a tetrahedral formation, each carrying atom-wave interferometers, linked by high precision laser ranging between spacecraft (see Fig. 1). This would allow GDM to measure the gradients of the gravitational force in four directions simultaneously, and reduce the trace of the gravity field tensor in any orientation of the constellation.

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