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Motion of the Moon
is one of the
largest objects in our sky. You may not notice the moon much. In
fact, many people don't realize that you can see the moon both during
the night and during the day, depending on its phase.
Yet the moon is very important to us. Even though it is small, it is
close to us and it's gravity causes the ocean tides. We use its orbit to
define a unit of time: the month.
Shop Windows to the Universe Science Store!
The Summer 2010 issue of The Earth Scientist
, available in our online store
, includes articles on rivers and snow, classroom planetariums, satellites and oceanography, hands-on astronomy, and global warming.
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