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Published online 2 October 2003 | Nature | doi:10.1038/news030929-6

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Himalayas age nine times overnight

Birth of world's highest mountains may date back 500 million years.

The Himalayas may be more than 450 million years old - nine times older than previously estimated - according to a controversial new dating study1.

The mountain range is generally thought to have arisen from the collision of India and Asia 55 million years ago.

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