If you knew the world was about to end, what would you do? That’s the dilemma Karen Gillan’s character faces in new film, The Life of Chuck, in which she stars opposite Chiwetel Ejiofor. Karen tells Nuala McGovern about her latest role, her evolving relationship with the Marvel films and her hope to return to directing.

'This report must act as a line in the sand…it should be read as a snapshot of what rock bottom looks like.’ That’s the warning from the Children’s Commissioner, two years on from her landmark report on the scale of children’s exposure to pornography online. Research out today from the Commissioner’s Office finds that more children are being exposed to pornography, with a growing number stumbling across it by accident, some younger than six. Much of the content children encounter is violent. The report also reveals troubling attitudes towards women and girls: nearly half of 16- to 21-year-olds agreed with the statement, 'Girls may say no at first but can be persuaded to have sex.' Joining Nuala in the studio is the Children’s Commissioner Dame Rachel de Souza.

As excitement builds ahead of the Women’s Rugby World Cup, we hear from endurance athlete Lexi Chambers. The five-time world record holder is in the middle of another epic challenge, wheeling 322 miles from Twickenham Stadium to Sunderland’s Stadium of Light to deliver the official match whistle in time for Friday’s opening game between England and the USA. Lexi, who lives with multiple chronic pain conditions, is aiming to complete 10 ultramarathons in 10 days using her every day, non-sport wheelchair. She takes a break to fill Nuala in on her progress and explain why she’s taken on such a challenge.

When Ukrainian President Zelensky went to the White House this week, he handed over a letter to President Trump. It was a message from his wife Olena Zelenska to Melania Trump, thanking the First Lady for the letter she had sent to Vladimir Putin highlighting the issue of the Ukrainian children removed by Russian forces. It’s believed that at least 20,000 Ukrainian children have been taken to Russia or Russian-occupied territory without the consent of their parents since the full-scale invasion. Nuala is joined by Ukrainian filmmaker Shahida Tulaganova and BBC Ukraine journalist Irena Taranyuk to discuss.

How Do Pop-Up Wetlands Work?