BackForward Satellite Programme: The Mass-Change and Geosciences International Constellation 

Programme details
Programme description
  • A NASA and ESA joint venture. 
  • The mission will consist of six satellites, operating in pairs, and will measure fluctuations in Earth’s gravitational field.
  • Lifetime 7 years.
  • Follow on from the Gravity field and steady-state Ocean Circulation Explorer (GOCE) mission, the Gravity Recovery and Climate Experiment (GRACE) and its follow-on mission, GRACE-FO.
  • More details here
Data circulation
Agencies NASA
Programme lifetime 2028 - 2040
Associated satellites and instruments

Note: red tag => no longer operational , green tag => operational , blue tag => planned