Which process involving the hypothesized ancient ocean supposedly contributed to slowing Venus's rotation?
Answer
Tidal interactions acting as a brake
One intricate layer added to the theory of Venus's evolution connects the presence of a large, ancient ocean directly to the planet's slow rotation rate. The theory posits that tidal interactions, which would have been influenced by the presence of this massive body of water, functioned as a significant braking force on the planet's spin over immense timescales. Once the greenhouse effect caused the ocean to boil away, this crucial rotational braking mechanism ceased, thereby locking in the planet's current, very slow spin period of about 243 Earth days.
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