Prof. Sam LawlerI'm guessing the artificial satellite thing come from badly measured astrometry (they say they think it's hollow?!) But it's bizarre that it's discussed in such a matter-of-fact way in this book, and I've never heard any of that. Seems like it should be a cautionary tale told to first year astro students about jumping to conclusions from badly measured orbits (....cough cough Planet 9 cough cough...)
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