We meet some of the swimmers participating in this year's swim across the Arctic Circle. Also, the groundbreaking science behind three parent babies, and the grandchildren available for hire in Bulgaria.

The trio hoping to soothe global tensions through musical collaboration. They mix Chinese and American songs to focus on similarities not differences. Also: helping disadvantaged teens go to the prom; and a K-pop first.

Presenter: Valerie Sanderson. Music composed by Iona Hampson

A surgeon who left his wedding to save a life says it's inspired him to help more people. Also: one man's adventures with a pet goose; a police officer reunited with a baby he rescued; and why we should eat more custard.

We meet Jack Pepper, the composer who's written a song for King Charles. The piece celebrates the harmony between people and the natural world. Also: hope for Alzheimer's patients; and how tourism could help stray dogs.

A special episode answering your questions about the Iran crisis. BBC experts discuss Iran's nuclear ambitions, possibilities of regime change and the impact on the wider Middle East.

The woman fulfilling her mother's dreams of travel by launching her ashes out to sea in a bottle. It's brought her happiness amid her grief. Also: Thailand's tigers bounce back; and making hospitals happier for children.

Presenter: Nick Miles. Music composed by Iona Hampson

A tiny dog famous for her big adventure reunites with her overjoyed owners, after 529 days in the wild. Also: the escaped Tennessee Zebra; why a man risked his life to save 41 others; and a footballing first for Senegal.

Joy in China as Beanbag the Capybara returns after months on the run. The giant rodent's adventures had gripped social media. Also: an ingenious idea making cities greener; and the flatpack furniture world champion.

Why the ancient English tradition of chasing a giant cheese down a steep hill is gathering crowds from around the world. Also: a life saving donation from a stranger half a world away; and Brazil's beatboxing nuns.

We hear how a man travelling the world with a cuddly duck has encouraged thousands to open up about mental health problems. Also: a roaring success for India's lions; and Kermit the Frog urges graduates to leap together.

Presenter: Valerie Sanderson Music: Iona Hampson

French far-right leader calls embezzlement conviction a 'witch hunt' at Paris rally. Also: mobile number mix-up blamed for White House security breach, Pope surprises crowds at the Vatican and Soccer Grannies World Cup.

What future for Ukraine? Your questions answered. Global News Podcast teams up with Ukrainecast for a special Q&A, in a week that has seen US military aid halted. Can Trump and Zelensky get back to talks on a peace deal?

Jackie Leonard will be joined by Ukrainecast's Vitaly Shevchenko, the BBC's Ukraine Correspondent James Waterhouse and Chief International Correspondent Lyse Doucet.