Only about 60%
of the moon's
surface is
visible from
planet Earth.
From Earth, you can
only see one side of
the moon, because
the other side is
always hidden.
The moon doesn't
have a global
magnetic field.
The first spacecraft to
send back pictures of
the moon was named
after it. It was called
The Luna 3.
Saturn's
moon (Titan)
Titan has a lot of
deep methane lakes
on its surface.
Titan is
Saturn's largest
moon.
Titan is the
second largest
moon in the solar
system.
Titan may be
habitable to other
forms of life.
Titan has the
densest
atmosphere out of
all the moons in the
solar system.
Titan is thought to
possibly contain liquid
water.
Saturn's
moon
(Enceladus)
Enceladus is
Saturn's sixth
largest moon.
Enceladus was
first examined
in detail by the
Voyager
spacecraft.
Enceladus'
body is
mainly
composed of
ice.
Enceladus may be
heated from the inside
with radioactive
heating.
A spacecraft called Cassini
photographed Enceladus, and
revealed that geysers of water may
exist on its surface. They are possibly
fed by the oceans under Enceladus'
surface.
Jupiter's
moon
(Europa)
Europa is
Jupiter's sixth
closest moon.
Europa was
discovered by
Galileo Galilei on
January 8th
1610.
Europa is the sixth largest
moon out of the 181
moons in the solar system.
Although
Europa is
about 4.5
billion years
old, its
surface is 20
to 180
million years
old.
There is enough radiation on
Europa to kill a human in just
one day.
Europa may have oceans
of liquid saltwater under
its surface.