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The Earth and Beyond

Stars  -  Galaxies  -  The Universe.

Millions of stars attract each other to form spiral shapes in space.
These spirals are almost flat with a bulge in the centre.
The spirals are called galaxies.
Many of the stars in a galaxy will have their own planets
and form their own solar systems.

The Sun is part of a galaxy called the Milky Way.
The distances between the Sun and the planets are large
but the distance between stars in the same galaxy
may be millions of times as big.

There are thousands of millions of galaxies in the Universe
(maybe many more).
The distance between galaxies may be millions of times as great
as the distance between stars of the same galaxy.

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Copyright © 2008 Dr. Colin France. All Rights Reserved.