A supermassive black hole that lives at the centre of our galaxy, the Milky Way, has been pictured for the very first time.

Known as Sagittarius A*, the object is a staggering four-million times the mass of our Sun.

For scale, the ring is roughly the size of Mercury's orbit around our star.

Fortunately, this monster is a long, long way away - some 26,000 light-years in the distance - so there's no possibility of us ever coming to any danger.

The BBC's Science correspondent Pallab Ghosh reports.

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