Space the journey in to the unknown

   Today I am blogging about space. I am going to explain what some of the objects are in space, what a planet is, what are some characteristics of the inner and outer planets, what a dwarf planet is and a lot more.


  First of all we live in the milky way, the sun is the center of our solar system and we live on planet Earth. We now count only eight planets in our solar system. We now consider Pluto as a dwarf planet because it is smaller than the objects that rotate around it.

  Here is a list of the planets in our solar system by location closest to the sun.

1. Mercury
2. Venus
3. Earth!
4. Mars
5. Jupiter
6. Saturn
7. Uranus
8. Neptune

  Planets are objects that orbit the sun, have almost a complete spherical shape and have a mass bigger than the things that orbit around it. Pluto is a Dwarf Planet because it has less mass than what is close to its orbit. Planets have a bigger mass than anything else orbiting it.





 The inner planets are Mercury, Venus, Earth and Mars. Being an inner planet means that they are mostly made of solid rock. These planets are smaller than the outer planets. The outer planets are Jupiter, Saturn, Uranus and Neptune. Outer planets are called the gas giants. They are mainly made of gases like helium and hydrogen.




 A planets orbit is not completely circular. It is shaped like an oval. If it was completely circular the temperature would not change a lot. Planets orbit around the sun counter-clockwise. You know how a clock goes right, well the planets go the opposite way. Planets change their speed because the planets get closer to the sun. When the planets get closer to the sun the gravitational pull of the sun makes them go faster.



 Asteroids are pieces of rocks floating in space. There are millions of asteroids floating around the sun. There is a big asteroid belt between the inner and outer planets. It is between Mars and Jupiter. Comets are made up of dust gas and ice and move around the sun. There is about one-trillion comets orbiting around the sun.






  The period of revolution is how long it takes for a planet to rotate around the sun. The period of rotation is how long a planet takes to spin on its axis. In space meters and kilometers are to small of measurements so astronomers use astronomical units. They use astronomical units to see how far things are away from the sun.






Click HERE for more information on planets and things in our solar system.


Click HERE to learn more about the revolution of planets.


Click HERE to learn more info.