* Astronomy

The first survey of Loch Lomond in 147 years has found Scotland's most famous loch is 600 feet deep in places with sheer cliffs lining an underwater canyon.
The British Geological Survey used the latest technology -- multi-beam sonar -- to map the floor of Loch Lomond, The Scotsman reported. The last time the bottom of the loch was surveyed, in 1861, Captain H.C. Otter of the Admiralty used fishing line with lead weights attached to take soundings from a rowboat.
Loch Lomond is deeper than the North Sea. The loch was gouged out by a glacier as the last Ice Age ended with a deeply sculpted northern end. The southern end of the loch is wider and shallower.

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