Wiltshire crop circle identified as symbolic code for first ten places of pi

Mathematicians are perplexed after a highly complex crop circle appeared in a Wiltshire field - depicting a fundamental mathematical symbol.

The circle is, apparently, a coded image representing a complex mathematical number — the first ten digits of pi — and even astrophysicists admit they find it “mind-boggling”.

The circular pattern was created in a barley field near Barbury Castle, an Iron Age hill fort, earlier this month.

Measuring around 46m (150ft) in diameter, it has had crop circle enthusiasts and experts stumped.