"Rick" wrote in :
"heron stone" wrote in message
...
"Astronomers have known about this dichotomy ever since
Italian-French astronomer Jean Dominique Cassini discovered Iapetus
in 1672. He correctly surmised that the moon's trailing hemisphere as
it moves around Saturn is composed of highly reflective material but
that the leading hemisphere is apparently without the glitter. That's
in contrast to the other 30 known moons of Saturn, as well as the
moons of Jupiter, all of which tend to be brighter on their leading
edges."
- from the article, "Cassini eyes Iapetus": Science News, July
31,
2004; Vol. 156, No. 5, p. 77
Do all of the moons of Saturn and Jupiter present the same face
toward their planets? I had assumed (perhaps erroneously) that
Earth's moon was an oddity. Is this the standard behavior for moons
in the Solar system?
No and Yes.
Really? Which satellites (moons) in our solar system are not tidally
locked to their planets?
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