On Monday, millions of people across Mexico, the US and Canada saw a total solar eclipse. That’s when the Moon moves between the Earth and the Sun, blocking its light. But it’s not just eclipse-chasers who are excited. Scientists are too. They’re using the opportunity to study the Earth's upper atmosphere (known as the ionosphere), the Sun’s corona, and even animal behaviour. So, could this solar eclipse could help unlock some of the secrets of our universe? Astronomer Jimena Stephenson and the BBC’s Laura Garcia explain. Instagram: @bbcwhatintheworld WhatsApp: +44 0330 12 33 22 6 Email: whatintheworld@bbc.co.uk Presenter: Hannah Gelbart Producers: Emily Horler and Mora Morrison Editor: Verity Wilde*In this episode Laura says Mexico last witnessed a solar eclipse in 1999. But it was in fact 1991.*

Over the last few decades, most countries in Europe have abolished compulsory military service. But following Russia’s invasion of Ukraine, the debate around conscription has returned. Last year Latvia restarted mandatory military service for men between 18 and 27. And now other countries are expanding their policies on conscription and encouraging their allies to follow suit. Last month Denmark proposed extending mandatory military service to women.BBC Europe correspondent Nick Beake explains why countries are bringing back conscription and how changing rules are affecting young people. We also hear from two young conscripts in Estonia . They describe their training and the mental toll it can take. Instagram: @bbcwhatintheworld WhatsApp: +44 0330 12 33 22 6 Email: whatintheworld@bbc.co.uk Presenter: Hannah Gelbart Producers: Emily Horler, Mora Morrison, Alex Rhodes, William Lee Adams Editors: Verity Wilde and Simon Peeks

Vinícius Júnior is one of the top footballers in the world but recently he broke down in tears when asked about the racist abuse he’s suffered from fans while playing for Spanish side Real Madrid. It’s sparked a fierce debate about racism in the sport and in Spain itself. The Brazilian has said that La Liga “belongs to racists”, so what can be done about the problem?We’ve got BBC Sport presenter Isaac Fanin and the What in the World team’s Maria Clara Montoya in the studio with Hannah to break down the issue. And we hear how a small team in Madrid, Dragones de Lavapiés, is trying to tackle racism and prejudice at a community level. Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Alex Rhodes and Julia Ross-Roy Editor: Verity Wilde

Welcome to the future. There are some people who already live with an implant inside their head. Noland Arbaugh is one of them - he’s paralysed but can now work a computer with his mind. There could be more people with brain chips if Elon Musk's hopes for his company, Neuralink, come true. He wants humans to merge with artificial intelligence to stop AI from taking over the world. That’s not happening any time soon, but there are lots of questions around how brain implants are used at the moment. How are they helping people? Are they ethical? Could we all have one at some point?Wired's biotech reporter, Emily Mullin, tells us more about how these brain interface devices work. And neuroethicist Laura Cabrera reflects on the moral implications of these implants. Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Baldeep Chahal, Benita Barden and Emily Horler Editor: Julia Ross-Roy

Senegal's democracy was put at risk earlier this year when former president, Macky Sall, tried to hold onto power by delaying elections and putting political opponents in prison. But the election went ahead and Senegal now has a new president. Who is Bassirou Diomaye Faye and with him in charge, what’s the future for the country?From Dakar, BBC correspondent Thomas Naadi tells us more about Faye's road to the Senegalese presidency.And BBC journalist Natasha Booty gives us some details about Faye's personal life, which has attracted much attention now he’s the first president in Senegal in a polygamous marriage with two wives. Instagram: @bbcwhatintheworld WhatsApp: +44 0330 12 33 22 6 Email: whatintheworld@bbc.co.uk Presenter: Hannah Gelbart Producers: Emily Horler, Maria Clara Montoya and Benita Barden Editor: Julia Ross-Roy

You may have started seeing adverts on your social media feed for a website called Temu. Its motto is “shop like a billionaire” and it sells… well, pretty much everything. The only thing the products in its marketplace have in common is that they’re dirt cheap and made in China.It’s the global wing of a Chinese e-commerce shopping company and burst onto the scene in 2022. It’s now worth just under 150 billion dollars. It’s aggressively marketed itself, releasing glossy adverts during the Superbowl, cultivating an army of influencers and offering promotions that encourage users to sign up other shoppers for cash giveaways. But the small print details of these deals got some experts worried about data and privacy protection. Alex chats to BBC Business and Tech reporter Sam Gruet talk about the origins of the company and how it manages to make money when its products are so cheap. Hannah speaks to BBC journalist Tom Espiner about the giveaway promotion and why users may have signed away more than they’d bargained for. Instagram: @bbcwhatintheworldWhatsApp: +44 0330 12 33 22 6Email: whatintheworld@bbc.co.ukPresenter: Hannah Gelbart and Alex Rhodes Producers: Baldeep Chahal and Maria Clara Montoya Editors: Verity Wilde and Simon Peeks

BBC's Senior West Africa Business Correspondent discusses the rising prices of chocolate and coffee due to climate change, irregular rainfall, and growing demand. The impact on farmers in West Africa and the challenges faced in the production industry are highlighted. Differences between Arabica and Robusta coffee beans are explored, along with efforts to address climate change and supply chain disruptions in the coffee production sector.

Marina Summers is one of the top drag queens in the Philippines and she was one of the finalists on RuPaul’s Drag Race UK vs The World. Her drag embraces her Philippine identity, with looks on the show inspired by rice farming and even the national fish. Drag culture in the Philippines is becoming more mainstream but it’s not completely easy for all drag queens - one queen, is facing prison time for ‘offending religion’, after dressing up as Jesus in a show. So what is life like for a Filipino drag queen? Plus we hear from two young LGBT people about what drag and being LGBT means to them.Also, William Lee Adams, from the What in the World team, takes us through what LGBT rights are like across Southeast Asia. Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Emily Horler and Mora Morrison Editor: Verity Wilde

Beyoncé has released her highly anticipated new album, Cowboy Carter. It is a deep dive into the country-western genre. Some critics have questioned why one of the biggest R'n'B vocalists in the world would experiment with country. But others say it is her right as a Texas-born singer. Regardless, there is a strong sense that she is helping black artists take up more space in a genre long associated with white Americans. Sophie Williams, a BBC reporter, explains how black artists have often felt excluded from the country music industry. We also hear the from two black women working in country music: Holly G, the founder of Black Opry, an organisation that connects black artists in the country and Americana genres, and Tiera Kennedy, a singer-songwriter from Alabama who appears on Beyoncé’s tracks Blackbird, which is a cover of The Beatles’ original song, and Tyrant.We also hear from Dr Emmett G Price III, dean of Africana Studies at Berklee College of Music & Boston Conservatory. He explains how African-American history influenced the development of country music. Instagram: @bbcwhatintheworld WhatsApp: +44 0330 12 33 22 6 Email: whatintheworld@bbc.co.uk Presenter: Hannah Gelbart with Sophie Williams Producers: William Lee Adams and Benita Barden Editors: Verity Wilde and Simon Peeks

Flying cars are something that’s straight out of sci-fi films and novels. But despite predictions in the past that we’d all be driving/flying one by now, they’ve always been confined to visions of the future. But could all that be about to change? A Chinese firm has bought a European company who’ve made a working flying car and has got permission to fly them in an unspecified location in its home country. China is a huge driving force behind the adoption of electric vehicles - can it do the same for flying cars? The BBC’s Technology Editor Zoe Kleinman takes us through the story. Plus Alex from the What in the World team drops in to talk about other predictions and whether they came true. Instagram: @bbcwhatintheworld WhatsApp: +44 0330 12 33 22 6 Email: whatintheworld@bbc.co.uk Presenter: Hannah Gelbart Producers: Alex Rhodes, Adam Chowdhury and Baldeep Chahal Editors: Verity Wilde and Simon Peeks