* Astronomy

Prehistoric finds on remote St Kilda's Boreray isle

The remains of a permanent settlement which could date back to the Iron Age has been uncovered on a remote Scottish island, according to archaeologists.
It was previously thought Boreray in the St Kilda archipelago was only visited by islanders to hunt seabirds and gather wool from sheep.
Archaeologists have now recorded an extensive agricultural field system and terraces for cultivating crops.
They have also found an intact stone building buried under soil and turf.
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