Uploaded December 2014 | Updated September 2026, 8 hours ago

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This episode investigates the recession of Earth's moon and what it says about the age of the planet.

References:

Lunar Laser Ranging
http://physics.ucsd.edu/~tmurphy/apollo/doc/Dickey.pdf
http://lunar.colorado.edu/~jaburns/astr5835/files/LLR.Science.1994.pdf

Lunar and solar effects on tides as explained by the NOAA
oceanservice.noaa.gov/education/kits/tides/tides06_variations.html

Comprehensive data on tidal variation
books.google.com/books?id=4YDvAAAAMAAJ&q=Syzygy&dq=Syzygy&cd=30&hl=en

George E WIlliams' paper
agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/1999rg900016