Saturday, December 12, 2009
Centuries-Old Planetary Mystery Solved With Data From Cassini
One of Saturn's moons, named Iapetus, pictured on the right, is the center of what is being called "The oldest mystery in planetary science," (Fountain). On the right side of the moon you can see an area that is black in color. Among the many theories as to why the moon has two different shades of color, recent studies have allowed one to emerge as truthful. Through their recent work, scientists have been able to conclude, that the black area is actually dust from another one of Saturn's moons. While the moon orbits around the planet, the moon catches all the dust on its leading (black) side, causing the discoloration that has left us baffled until the scientists received images and data from instruments aboard the spacecraft name for Cassini, whom first discovered the discoloration in 1671.
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