Questions tagged [grand-tour]

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Just how much “dumb luck” was reaching the space age during the “Grand Tour” opportunity? Would we have been SOL 1050 or 2100 years before/after?

@OscarLanzi's answer to Why is the gas giant grand tour interval 175 years when the synodic period of Uranus and Neptune is 171 years? is an excellent answer describing a subtle situation; each pair ...