Gravitational experiments in space: Gravity probe B and STEP

J. Mester, S. Buchman, A.M. Cruise, D. DeBra, H. Dittus, C.W.F. Everitt, B. Foulon, G.M. Keiser, N.A. Lockerbie, C. Pegrum

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


We describe two space based gravitational physics experiments, the Gravity Probe B Relativity Mission (GPB) and the Satellite Test of the Equivalence Principle (STEP). GP-B will perform precision tests of two independent predictions of general relativity, the geodetic effect and frame dragging. STEP will provide a precision test of a foundation of general relativity, the Equivalence Principle.
Original languageEnglish
Pages (from-to)147-154
Number of pages7
JournalNuclear Physics B - Proceedings Supplements
Publication statusPublished - Sept 2004


  • equivalence principle
  • relativity
  • gravity
  • space


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