Open Access

Evolution of the earth – moon system

Planetary Science20143:1

DOI: 10.1186/s13535-014-0001-6

Received: 10 January 2014

Accepted: 14 January 2014

Published: 4 April 2014


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
Institute for Physical Sciences and Technology, University of Maryland


© Gudipati; licensee Springer. 2014

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.