The Kremlin’s pursuit of a “sovereign internet” has raised fears of a digital Iron Curtain. After months of mobile internet shutdowns, Russian authorities have moved to block major platforms like YouTube and Telegram, along with the VPNs people rely on to bypass restrictions. We explore what’s driving the push to isolate the largest country on Earth from the global internet and unpack the political, economic and military implications of the country’s tightening digital borders.

Contributors: Daria Mosolova, Howard Gethin, Gleb Borshchevski, Evgeny Pudovkin Producer: Kriszta Satori Presenter: Krassi Ivanova Twigg Music: Pete Cunningham

Artemis II astronaut, Jeremy Hansen, reflects on the mission, adapting to life back on Earth after journeying to the far side of the Moon, and looks ahead to future Artemis missions. The Canadian astronaut, who first spoke to 13 Minutes from quarantine before launch, answers the burning questions from the team. He describes the moment a hull breach alarm sounded 20 minutes before the Trans Lunar Injection was due to fire. Then we get to the big one – what’s next for the Artemis programme? Season 4 theme music by Hans Zimmer and Christian Lundberg and produced by Russell Emanuel, for Bleeding Fingers Music. 13 Minutes Presents: Artemis II is a BBC Audio Science production for the BBC World Service. Presenters: Tim Peake and Maggie Aderin-Pocock

In Scotland, from 1940 to 1963, the artist Joan Eardley produced a cache of monumental seascapes, landscapes, and poignant portraits. When she died aged 42 of breast cancer, people were still trying to categorise her work - part abstract expressionist, part Scottish colourist, part social realist, part kitchen sink (one of her first solo exhibitions was in a cinema). She worked with oil and pastels, but also used collage and plaster on her canvas, as well as gravel and sand and bits of plants (one gallerist scraped these bits off, confused.) She even used graffiti in her portraits of children living in tenements in Glasgow, decades before it became fashionable. A new exhibition at the National Galleries of Scotland hangs Joan's work alongside some of the most cherished and valuable paintings in their collection, including works by Monet and Constable. Curator Kerry Gledhill talks to Antonia Quirke about looking for 'synergies' between the works she has chosen to exhibit, and about Joan's short, passionate, productive life and working practice.

Eighteen months ago, the renovation of the railway station in Serbia’s second biggest city, Novi Sad, led to a tragic accident. A substantial concrete canopy, which ran across the front of the station building, suddenly collapsed, killing sixteen people. The disaster sparked mass protests. Marchers demanded justice for the dead and injured. As the protests spread, to the capital, Belgrade, and to towns and cities across the country, the demands evolved. Protesters accused the government of corruption and of covering up the truth about what happened. The government accused the protesters of being foreign agents, supported and organised by malign outside forces. Now, after more than a year, the mass protests have finally subsided. Jill McGivering is in Serbia to find out what’s happened to that explosion of anti-government anger.

This episode of The Documentary comes to you from Assignment, investigations and journeys into the heart of global events.