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Mark Fisher
1999-2008
Moons
Bodies that orbit planets, ranging from the tiny to the gigantic. At least in Earth's solar system, moons are a common phenomenon - of the nine planets, only Mercury and Venus are moonless.

Titan and Saturn
The second largest moon in the Solar System (after Ganymede) is Titan, seen here with its parent planet Saturn. Its thick orange clouds cover a body that has almost twice the mass of Earth's Moon.
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