Everitt, C W FMuhlfelder, BDeBra, D BParkinson, B WTurneaure, J PSilbergleit, A SAcworth, E BAdams, MAdler, RBencze, W JBerberian, J EBernier, R JBower, K ABrumley, R WBuchman, SBurns, KClarke, BConklin, J WEglington, M LGreen, GGutt, GGwo, D HHanuschak, GHe, XHeifetz, M IHipkins, D NHolmes, T JKahn, R AKeiser, G MKozaczuk, J ALangenstein, TLi, JLipa, J ALockhart, J MLuo, MMandel, IMarcelja, FMester, J CNdili, AOhshima, YOverduin, JSalomon, MSantiago, D IShestople, PSolomonik, V GStahl, KTaber, MVan Patten, R AWang, SWade, J RWorden, P WBartel, NHerman, LLebach, D ERatner, MRansom, R RShapiro, IrwinSmall, HStroozas, BGeveden, RGoebel, J HHorack, JKolodziejczak, JLyons, A JOlivier, JPeters, PSmith, MTill, WWooten, LReeve, WAnderson, MBennett, N RDougherty, HDulgov, PFrank, DHuff, L WKatz, RKirschenbaum, JMason, GMurray, DParmley, RRatner, M IReynolds, GRittmuller, PSchweiger, P FShehata, STriebes, KVandenBeukel, JVassar, RAl-Saud, TAl-Jadaan, AAl-Jibreen, HAl-Meshari, MAl-Suwaidan, B2018-03-082015Everitt, C W F, B Muhlfelder, D B DeBra, B W Parkinson, J P Turneaure, A S Silbergleit, E B Acworth, et al. 2015. “The Gravity Probe B Test of General Relativity.” Classical and Quantum Gravity 32 (22) (November 17): 224001. doi:10.1088/0264-9381/32/22/224001.0264-9381http://nrs.harvard.edu/urn-3:HUL.InstRepos:34903205The Gravity Probe B mission provided two new quantitative tests of Einstein's theory of gravity, general relativity (GR), by cryogenic gyroscopes in Earth's orbit. Data from four gyroscopes gave a geodetic drift-rate of −6601.8 ± 18.3 marc-s yr−1 and a frame-dragging of −37.2 ± 7.2 marc-s yr−1, to be compared with GR predictions of −6606.1 and −39.2 marc-s yr−1 (1 marc-s = 4.848 × 10−9 radians). The present paper introduces the science, engineering, data analysis, and heritage of Gravity Probe B, detailed in the accompanying 20 CQG papers.en-USJournal Article2016-01-27CWF Everitt, II Shapiro, B Al-Suwaidan, et.al.10.1088/0264-9381/32/22/224001