20/05/2022 GMT

John Simpson, in discussion with the BBC's unparalleled range of experts across the world, looks at the views of Ukrainians on the progress of the war against Russia.

This week John Simpson, in discussion with the BBC's unparalleled range of experts across the world, looks at the views of Ukrainians on the progress of the war against Russia, analyse why North Korea has - for the first time - confirmed cases of Coronavirus in the country and, examines the first conclusive proof that a gargantuan black hole lives at the centre of our galaxy.

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26 minutes