This short extract from the new book, "TIME DILATION - The Reality", explains, amongst other things, the cause of the Galactic Rotation Anomaly. As a result, astronomy can now move forward without having to invent "Dark Matter". This book, published in March 2011 and priced at £10.99 GBP +p&p, highlights a fundamental philosophical error within Special and General Relativity theories. It keeps strictly to the scientific method and also explains the following;- - What exactly IS "Gravity" and what is the cause and effect? - WHY is "c" the limit of relative speed? - Why length contraction due to motion is just a relative illusion. - Why time dilation is the only reality within relativity. - Some progress with our understanding of the nature of time. - What is the cause of the "Pioneer Anomaly? - What is inertia? - What is the real answer to the "Twin Paradox"? - A serious alternative to the Big Bang. Order direct from the author (quickest), by e-mailing him at kenhughes@aol.com or from any book shop in the world using "ISBN 978 - 0 - 9568002 - 0 - 6 If you want to keep abreast of the latest developments in theoretical physics, albeit on the "fringe", then you must have a copy of this ground breaking book.