* Astronomy

Stories about mysterious underwater structures in the Bay of Firth have been circulating for a number of years.
But now, a sonar survey of the area hopes to answer, once and for all,what lies on the sea bed.
The week-long project came to an end last Friday. At the helm is local archaeologist Caroline Wickham-Jones, who was working alongside Sue Dawson, of the University of Dundee, and Fiona Stewart of Hi-Res Geo-Services.

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