THE SOLAR SYSTEM

The sky is a gateway to an endless universe of planets, moons, stars, satelites and debris which we call comet, meteorite or asteroid, depending how it looks and how big it is.

Earth is just one of the eight planets which orbit the sun to make up the solar system.

The other seven planets are jupiter, saturn, urnaus, neptune, venus, mars and mercury.

The world of interstellar is gigantic and the solar system is just one small fraction of it.

The sun is regarded as the ‘Mother’ of all stars and is a massive gas-ball giving out heat, energy and life to everything on earth.

The earth was formed 4.6 billion years ago and is ninety three millions away from the sun.

It takes eight minutes for sunlight to reach earth from the sun.

It takes three hundred and sixty five days for the earth to orbit around the sun in a complete rotation.  That is a whole solar calendar year.

The solar system is just one of the galaxies which exist in space.

Another one which is well known is the Milky Way but you can usually only see it through the magnified lens of a telescope.

Humans believe that extra-terrestial or alien life may exist on another planet in the universe.

Astronauts began the journey into space in rockets in the quest to better understand the development of life.

Unmanned spacecraft have continued that quest.

So far, the  moon, the nearest globe to earth, is the only place where humans have set foot other than earth.

The moon is actually not a planet but a satelite which orbits the earth.

The solar system has been barely explored.

 

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