A paper I heard about last year about gravity.

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Discussion Overview

The discussion revolves around a paper related to deviations from predictions made by general relativity regarding the velocities of space probes. Participants express interest in the specifics of the research and its implications, as well as the broader context of gravitational theories.

Discussion Character

  • Exploratory, Debate/contested, Conceptual clarification

Main Points Raised

  • One participant recalls a paper discussing measured velocities of space probes that deviated from general relativity's predictions, suggesting these deviations were systematic rather than random.
  • Another participant suggests looking into the "Pioneer anomaly" as a related topic, indicating that there is no conclusive explanation for the observed deviations.
  • A participant expresses interest in the Modified Newtonian Dynamics (MOND) theory, noting its connection to the discussion on the anomalies.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the specifics of the paper or the implications of the findings. Multiple competing views regarding the interpretation of the anomalies and their causes remain present.

Contextual Notes

Participants mention uncertainty regarding the exact measurements and units related to the probe velocities, as well as the need for further exploration of the paper's details.

Who May Find This Useful

Readers interested in gravitational theories, anomalies in space probe measurements, and alternative gravitational models such as MOND may find this discussion relevant.

bm0p700f
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In the back of the economist there are articles about new research. One of them was about a paper published in science I think. It concerned deviations form what general relativity predicts for the velocity of space probes.

I said that the measured velocities of a probe or probes was out by a few mm/s or cm/s or was it m/s (I suppose using doppler shift probe velocities could be measured very accurately) from what general relativity predicts (I probably have the units wrong. These deviation the article commented where not random but followed a power. I forgot at the time to look this paper and now I can remember so little about where to find eg. it title.

Does anyone remember what this paper is? Where the researchers measuring what they think they where measuring or has it disappeared quietly into the archives never to be seen again?

Help me find it please I would love to read it.
 
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Thanks. So nothing conclusive as to the cause yet. How perplexing. The link in the wiki entry to the MOND was interesting though. I have always wondered how that was formulated. Now I know.
 

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