Gravity Probe B
Gravity Probe B was the flight spacecraft used by NASA and Stanford University to test geodetic precession and frame dragging in polar Earth orbit. Launched on 20 April 2004, it carried four cryogenic gyroscopes and a telescope referencing their spin directions to a distant star. Its main science measurements were collected from August 2004 to August 2005.
Identity
- Aliases
- GP-BGravity Probe-BGPB
- Name
- Gravity Probe B
- Status
- retired
Details
- Description
- Gravity Probe B was the flight spacecraft used by NASA and Stanford University to test geodetic precession and frame dragging in polar Earth orbit. Launched on 20 April 2004, it carried four cryogenic gyroscopes and a telescope referencing their spin directions to a distant star. Its main science measurements were collected from August 2004 to August 2005.
- First Flight Date
- 2004-04-20
- Operator
- Vehicle Family
Links
Assets & Meta
- Creation Time
- October 29, 2026 at 15:25:30 UTC
- Updated Time
- October 29, 2026 at 15:25:30 UTC
Other
- Vehicle Code
- GP-B