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Showing posts with label Solar System. Show all posts
Showing posts with label Solar System. Show all posts
Wednesday, March 13, 2013
The Solar System
The Solar System consists of a star known as the Sun and its planetary system with eight planets and a lot of other objects.
The Solar System is located in the Milky Way. The closest star is Proxima Centauri, which is about 4,22 lightyears away.
Earth
Planet Earth is -as we all know- our home planet. It is the third planet as seen from the Sun, the star of the Solar System. Earth has one natural satellite which is called the Moon. It is a solid planet and the most dense (in mass) of the Solar System.
The planet formed about 4,5 billion years ago. Theories about how Earth began to form differ a lot. Most astrophysicists believe that the planet is a result of accretion
The closest planet to Earth is Mars.
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| Earth and Moon |
The planet formed about 4,5 billion years ago. Theories about how Earth began to form differ a lot. Most astrophysicists believe that the planet is a result of accretion
The closest planet to Earth is Mars.
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