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Gravity Probe B

Testing Einstein's Universe

Index of Status Updates (1997-2011)

2011 Status Updates

  • May 2011 GP-B Final Results • PRL Paper • NASA Headquarters Press Conference • Press Releases & Message from Stanford President Emeritus, Donald Kennedy • News & Media Coverage
  • April 2011 Notice of NASA Science Update and GP-B Final Results Announcement • Live TV Coverage at Stanford

2009 Status Updates

  • Fall 2009 Frame dragging clearly visible•Parallel Processing • Science Advisory Committee Meeting #19 • John Mester's Aero-Astro Course • Payload & Spacecraft Simulator • Collaborative Research & Funding • Wiliam Fairbank Workshop
  • Winter 2009 Frame dragging observed • Final Science Report to NASA • New GP-B funding sources

2008 Status Updates

  • Fall 2008 New GP-B funding (outside NASA) • Science Advisory Committee Meeting #18 • Dramatic Progress in the Data Analysis
  • May 2008 NASA SMD-Astrophysics Senior Review • Physics Research Plight at NASA• Continued Relevance/Importance of GP-B • Road Ahead
  • Spring 2008 Program Extension • Increasing Precision of the Results• Increasing Accuracy of the Results

2007 Status Updates

  • December 2007 Data analysis progress update following SAC meeting #17 • GP-B Final Report to NASA • New & Improved GP-B Web site coming soon
  • September 2007 Data analysis progress update • NSSDC Data archive • GP-B Final Report to NASA • USAFA use of GP-B spacecraft
  • Summer 2007 Successful Mission • Relativity Effects Visible in Data • First Results • Two Surprises • Next Steps Towards Final Results
  • June 11 The Two Surprises and Their Underlying Cause
  • April 14 First Results of GP-B announced at the APS meeing
  • February 9 GP-B Presentations at April APS Meeting

2006 Status Updates

  • December 22 2006 End of Year Status
  • November 20 Polhode Motion in the GP-B Gryos
  • October 11 Spacecraft Ready for Hibernation
  • September 11 GP-B Science Advisory Committee (SAC) Meeting #15
  • August 7 U.S. Air Force Academy will begin using GP-B spacecraft in September
  • July 7 Tony Lyons receives NASA leadership award
  • June 7 Everitt Lecture; GP-B Facilities Relocation
  • May 1 Preparations for Spacecraft Hibernation; GP-B is Evening Star
  • March 31 Technology Connections: From Einstein to Farming
  • February 28 GP-B Science Advisory Committee Meeting #14
  • January 31 Spacecraft Ready for Other Experiments

2005 Status Updates

2004 Highlights

2003 Highlights:

2002 Highlights

2001 Highlights

2000 Highlights

1999 Highlights

1998 Highlights

1997 Highlights