Saturn, the sixth planet from the Sun, is the second largest planet in our solar system.
It is often called the ringed planet because many rings of dust and rocks surround it.
Saturn also has over 31 moons.
Some of Saturnís rings
Saturn with some of
Titan is a moon of Saturn that may have some
Conditions necessary for life! The picture on
the right shows an artistís drawing of how Titan
might have looked when the Cassini-Huygenís
probe dropped into its atmosphere in Dec., 2004.
Uranus is a very unusual planet because it sits on its side with north and south
poles sticking out the sides. It rotates around this axis, making it look like a ball
rolling around in a circle around the Sun.
some of Uranusís moons
Tiny Dark Moon
Neptune, usually the eighth planet from the Sun, is a very cold place.
Occasionally, Pluto crosses Neptuneís orbit and becomes the eight planet.
Its bluish color comes from its atmosphere of methane gas.
Clearest view to date
Of Pluto and Charon
Pluto, usually the ninth planet from the Sun, is the smallest planet in our solar system.
Some scientists believe that Pluto once was one of Neptuneís moons, and that it
pulled out away from Neptune and made its own orbit.
Comet Halley in 1910
Comets are sometimes called dirty snowballs or "icy mudballs".
They are a mixture of ices (both water and frozen gases) and dust that for
some reason didn't get incorporated into planets when the solar system was formed.
This makes them very interesting as samples of the early history of the solar system.
When we see a comet, we
are seeing the tail of the comet
as comes close to the Sun.