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lunar day

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lunar day [′lü·nər ′dā]
(astronomy)
The time interval between two successive crossings of the meridian by the moon.
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That water doesn't remain on the moon, but comes and goes each lunar day.
The damp moon: team finds water on lunar surface: interior volcanic ... by Cowen, Ron / Science News
According to University of Maryland astronomer Jessica Sunshine and co-authors, "The Deep Impact observations of the Moon not only unequivocally confirm the presence of OH/H2O on the lunar surface, but also reveal that the entire lunar surface is hydrated during at least some portions of the lunar day.
How water is formed on the Moon by Asian News International
RESULTS Under constant conditions, crabs had either: (1) a circatidal rhythm in vertical migration with displays at the time of consecutive ebb tides in the field; (2) one display each lunar day at the time of ebb tide in the field or (3) no rhythm.
The circatidal rhythm in vertical swimming of female blue crabs, ... by Saal, Anna / Journal of Shellfish Research
 
 
 
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