Exposing PseudoAstronomy

October 12, 2013

Podcast Episode 89: Remaining Issues with Lunar Formation, Interview with Robin Canup

What are the problems
With current models of the
Earth’s Moon’s formation?

Another slightly late one, this is the long-anticipated “what’s left in lunar formation?” episode, a follow-on to Episode 53: Lunar Formation and Origins, put up almost exactly one year ago. The episode is an interview with a leading researcher in the field, Dr. Robin Canup, and it’s about a half hour long.

The next episode is still slated to be about the claim that alleged UFO-contactee Billy Meier knew about Jupiter’s rings before scientists did. I expect the comments on that post might fill up, but I’ll note now that no comments to THIS blog post will be allowed on IF they are about Billy Meier material UNLESS they are a suggestion for a puzzler. Generic Meier conversations will be allowed on the next post about Episode 90.

Also, I’m starting to roughly plan out Episode 100. If you have Skype and are good at making stuff up for a few minutes that’s related to anything discussed so far on the podcast, please let me know and you might get on the first three-digit episode.



  1. Great episode. Didn’t realize that the Soviet probes VeGa 1 & 2 which carried landers fitted with equipment to study the surface rocks had not determined the Oxygen ratios back in the 1980’s.


    Comment by Graham — October 14, 2013 @ 6:36 am | Reply

    • Yeah, I didn’t either. Maybe the constraints of a mass spectrometer back then for the very slight weight differences in the oxygen isotopes versus the Venusian surface didn’t allow ’em.

      Comment by Stuart Robbins — October 14, 2013 @ 9:23 am | Reply

  2. I really enjoyed your interview with Robin, thanks for making it available online. It’s interesting that the resonance spin-down may allow for high-energy collision scenarios. I didn’t catch the names of the people working on that – could you provide a reference please?


    /Björn Davidsson

    Comment by engastrobd — April 2, 2014 @ 1:17 pm | Reply

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