Astronomy: 'Odd radio circles' in the sky a ‘genuine mystery’

A new high powered telescope in the Australian outback has led astronomers to an intriguing new discovery.

"Odd radio circles" or ORCs have never been seen before and have left scientists baffled.

Astrophysicist Professor Ray Norris explained to the BBC why the mysterious circles have the space community so excited.

Video by Isabelle Rodd