3. Mercury
Overview and special
names
Moons
Mercury is the smallest
planet in our solar system.
Mercury is the closest planet
to the Sun. It's just a little
bigger than Earth's moon. ...
Along with Venus, Earth, and
Mars, Mercury is one of the
rocky planets. It has a solid
surface that is covered with
craters. It is the first planet
from the Sun.
No moons.
4. Venus
Overview and special
names
Moons
Venus is the second planet from
the Sun, and is Earth's closest
neighbor in the solar
system. Venus is the brightest
object in the sky after the Sun
and the Moon, and sometimes
looks like a bright star in the
morning or evening sky. The
planet is a little smaller than
Earth, and is similar to Earth
inside. Its special name is
morning star/evening star.
No moons.
5. Earth
Overview and special
names
Moons
Earth, our home planet, is a
world unlike any other. The
third planet from the
sun, Earth is the only place in
the known universe
confirmed to host life. With a
radius of 3,959
miles, Earth is the fifth
largest planet in our solar
system, and it's the only one
known for sure to have liquid
water on its surface.
1 moon named Luna.
6. Mars
Overview and special
names
Moons
Mars is the fourth planet
from the Sun and the second-
smallest planet in the Solar
System, being larger than
only Mercury. ... Mars is a
terrestrial planet with a thin
atmosphere, with surface
features reminiscent of the
impact craters of the Moon
and the valleys, deserts and
polar ice caps of Earth.
2 moons named Phobos and
Deimos.
8. Jupiter
Overview and special
names
Moons
Jupiter is the fifth planet
from the Sun and the largest
in the Solar System. It is a gas
giant with a mass one-
thousandth that of the Sun,
but two-and-a-half times that
of all the other planets in the
Solar System combined. ...
Surrounding Jupiter is a faint
planetary ring system and a
powerful magnetosphere.
79 moons.
9. Saturn
Overview and special
names
Moons
Saturn is a gas giant made up
mostly of hydrogen and
helium. Saturn's volume is
greater than 760 Earths, and
it is the second most massive
planet in the solar system,
about 95 times Earth's mass.
The Ringed Planet is the least
dense of all the planets, and
is the only one less dense
than water. It is sixth planet
from the sun
62 moons.
10. Uranus
Overview and special
names
Moons
Uranus is an Ice Giant planet
and nearly four times larger
than Earth. Uranus has 27
known moons, most of which
are named after literary
characters. Like Saturn,
Jupiter and
Neptune, Uranus is a ringed
planet. It is the seventh
planet from the Sun.
27 moons.
11. Neptune
Overview and special
names
Moons
Neptune is dark, cold, and
very windy. ... Neptune is
very similar to Uranus. It's
made of a thick soup of water,
ammonia, and methane over
an Earth-sized solid center.
Its atmosphere is made of
hydrogen, helium, and
methane. It is the eighth/last
planet from the Sun.
14 moons.
