Solar System

The Solar System

The solar system has 8 planets without Pluto. All these planets orbit around the sun and the sun has a gravity that also pulls the planets to the sun.  In the solar system you will find planets, moons, asteroids,comets and other stuff.  What are the inner planets and the outer planets?

       

Firstly,  Pluto is dwarf planet.  It is because of it size but some people do not think it is a planet at all.  The two smallest planets  are Mercury and Pluto.  The two biggest planets are Jupiter and Saturn.  Most planets has their own moons and Mars has Phobos and Deimos.  Earths moon is called The Moon.  Jupiter has four biggest moons which are called Io, Europa, Ganymede and Callisto.

Secondly, there  is one sun unlike there are lots of moons.  The sun is five billion years and it has five billion more years until it burns out.  In Earth  nothing can live without the sun’s energy that it gives us.  In the sun there are 6 layers the layer in the middle is called the core the core holds all the suns energy.  In the galaxy there are billions and billions of stars and the sun is actually one of them.

Thirdly, Out of all of the moons there are seven moons which are  from Earth, Mars and Jupiter.  The biggest moon is not our moon but it is Ganymede, one of the biggest moons from Jupiter.  Jupiter has at least sixteen big moons and even more smaller moons.  Did you know that Pluto is smaller than our moon?

Finally, Asteroid belts are between inner planets and outer planets.  Many scientists believe that debris  (Debris means rubbish or remains of something) in the asteroid belts may be from a planet that never actually formed.  Some big asteroids have been given names which are Ceres, Gaspra, Ida, Itokawa, Mathilde.

The inner planets are Mercury,Venus,Earth,Mars.  The outer planets are Jupiter,Saturn,Uranus,Neptune.  All these planets are inner and outer planets that means inner is the planets closer  to the sun and the outer means they are  further away from the sun.