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https://explainingscience.org/tag/astronomy/
Astronomy – Explaining Science
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https://explainingscience.org/tag/pioneer/
Pioneer – Explaining Science
Posts about Pioneer written by Steve Hurley
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https://explainingscience.org/2025/08/19/lunar-stationary-orbits-why-they-are-impossible/
Lunar Stationary Orbits: Why They are Impossible – Explaining Science
Updated April 2026 – A friend of mine recently asked me whether it was possible to have a lunar-stationary orbit. This would be the equivalent of a...
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