2. The Solar System is the Sun and all the objects that orbit
around it. The Sun is orbited by planets, asteroids, comets and
other things. The Solar System is about 4.6 billion years old. ...
The other objects are pulled into orbit around the Sun
4. Mercury is the smallest planet in the Solar System. It is
the closest planet to the sun. It makes one trip around the
Sun once every 87.969 days.
5. Venus is the second planet from the Sun. It is named
after the Roman goddess of love and beauty. As the
brightest natural object in Earth's night sky after the Moon,
Venus can cast shadows and can be, on rare occasions,
visible to the naked eye in broad daylight.
6. 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.
7. Mars is sometimes called the Red Planet. It's red
because of rusty iron in the ground. Like Earth, Mars has
seasons, polar ice caps, volcanoes, canyons, and
weather. It has a very thin atmosphere made of carbon
dioxide, nitrogen, and argon.
8. Jupiter is the fifth planet from the Sun and the largest in
the Solar System. It is a gas giant with a mass more than
two and a half times that of all the other planets in the
Solar System combined, but slightly less than one-
thousandth the mass of the Sun
9. 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
10. Uranus is the seventh planet from the Sun in the Solar
System. It is an ice giant as Neptune. It is the third largest
planet in the solar system.
11. Neptune is the eighth and farthest known Solar planet
from the Sun. In the Solar System, it is the fourth-largest
planet by diameter, the third-most-massive planet, and the
densest giant planet