If approved by Lancashire County Council the well will be 8.5in (22cm) in diameter and extend approximately 1km from the current vertical well, more than a mile beneath the surface.

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The Siding Spring Observatory, located high in a remote area, is home to Australia's largest optical telescope, the 3.9m diameter Anglo-Australian Telescope, as well as several others.

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GPS, which uses signals from satellites, only works well outside and its co-ordinate system only identifies areas down to a few metres in diameter.

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Hopefully, small diameter leads like Riata ST Optim and Durata are up to the challenge and will do well.

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