Explore Ideas: Learning & Discussing Space Probes & Gravity

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SUMMARY

The discussion centers on Gravity Probe B (GP-B), which is designed to test predictions of Einstein's General Theory of Relativity, specifically the concept of Frame Dragging. GP-B is scheduled to launch on April 17, 2004. The conversation also highlights that while GP-B will not measure the speed of gravity, the Laser Interferometer Gravitational-Wave Observatory (LIGO) will investigate gravitational waves traveling at the speed of light. Participants express appreciation for the information shared regarding these space probes and their missions.

PREREQUISITES
  • Understanding of Einstein's General Theory of Relativity
  • Familiarity with the concept of Frame Dragging
  • Knowledge of gravitational wave detection methods
  • Awareness of space probe missions and their objectives
NEXT STEPS
  • Research the specifics of Gravity Probe B's mission and objectives
  • Learn about LIGO and its role in detecting gravitational waves
  • Explore the implications of Frame Dragging in modern physics
  • Investigate other space probes that test theories of relativity
USEFUL FOR

Astronomy enthusiasts, physicists, and students interested in gravitational theories and space exploration will benefit from this discussion.

juan avellaneda
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this is a great site for learning and discussing ideas...

well i have two questions
1. Whats the objetive of the mission space probe b?
was it launched yet?
2. Has been ever performed any experiment searching for the speed of gravity? (like fizeau's for light?)
 
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I think you may be referring to Gravity Probe B. GP-B, as it is called, will test a couple of predictions made by einstein's General Theory of Relativity. One of these is Frame Dragging, the idea that the gravitational influence of an object with mass can not only warp or bend spacetime, but in the case of a rotating object, spacetime may be spun, as well. It is officially scheduled to launch on April 17th, 2004. You can sign up for weekly updates about the mission by going to majordomo@lists.Stanford.edu(you just upt the words "subscribe gpb-update" anywhere in the body of the e-mail) , I did !

It will not test the speed of gravity, but LIGO will. More accurately, it will look for gravity waves traveling at lightspeed. If they travel at any other speed, I suppose it won't find them at all.
 
gpb

ok lurch thanks for your valuable information
 

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