Friday, October 16, 2009

Where are we in the Universe?

The Earth is the third planet of eight (or nine, if you still count Pluto as a planet) from the Sun in the solar system, at an average distance of about 149,668992 kms. The solar system itself is on the inner rim of one of the arms of the Milky Way galaxy. It is about 6,500 light years from the next arm!

The Milky Way galaxy is millions of light years from what we believe to be the centre of the Universe. It is only one of more than probably billions of galaxies in the Universe! In fact, there are about 1.8 million, million stars for every human being alive on the Earth today. Awesome isn't it? It makes us realize what a tiny, tiny role our planet plays in the Universe.

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