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  • Editorial
  • Open Access

Evolution of the earth – moon system

Planetary Science20143:1

  • Received: 10 January 2014
  • Accepted: 14 January 2014
  • Published:


No abstract.

Due to a glitch in the editorial process, the manuscript by Riofrio “Calculation of lunar orbit anomaly” (Riofrio, L., Planetary Science 2012, 1:1) was accepted for publication before the reviewing process was complete.

Post-publication reviews revealed that the observed Earth-Moon distance increase by ~3.82 cm/yr derived using Lunar Laser Ranging (LLR) has already been dealt with in the literature without having to assume any new fundamental physics like a cosmological variation of the speed of light as hypothesized by Riofrio in the above-cited publication.

The following new article “The Past and Present Earth-Moon System: the Speed of Light Stays Steady as Tides Evolve” by James G Williams, Slava G Turyshev, and Dale H Boggs, Planetary Sciences 2014, 3:2, addresses the issue of Earth-Moon distance variations again in a greater detail and confirms that no changes in fundamental physics are necessary to explain the observations.

Dr. Murthy S. Gudipati

Editor-in-Chief, Planetary Sciences

Authors’ Affiliations

Jet Propulsion Laboratory, California Institute of Technology, Pasadena, 91109, CA, USA
Institute for Physical Sciences and Technology, University of Maryland, College Park, 20742, MD, USA