Why are there concerns AI could threaten humanity, and how real are they? Image caption, Calls for AI regulation are growing as concerned researchers and bosses issue disconcerting warnings about the tech's potential In recent weeks, warnings about potential dangers of AI have spurred calls for coordinated action to slow the technology's development. Claims by current and former researchers that the tech will endanger humanity - with one suggesting there is a greater than 10% chance of it killing all humans - have raised alarm bells. Major developers OpenAI and Anthropic have urged lawmakers to regulate it, though some perhaps cynically suggest this move aims to cement their dominance over rivals. Regardless, the high profile claims have caused concern.

Critics celebrate Céline Dion's'high-stakes' comeback show in Paris Iconic Canadian pop singer Céline Dion has kicked off her long-awaited comeback show in Paris on Saturday, after a six-year hiatus due to health issues. The 58-year-old superstar was diagnosed with a rare neurological disorder called stiff person syndrome in 2022, which forced her to pull back from touring. Dion, one of the best-selling musical artists of all time, has not performed a full show since a 2020 concert in New Jersey - the last before the Covid pandemic cut her tour short. In 2024, she performed just one song at the Paris Olympics closing ceremony. Saturday marked the first of Dion's 26-show residency at the Paris La Défense Arena, Europe's largest covered concert arena.

Image caption, This year's November full moon will appear as a supermoon. This is 2025's November Beaver Moon captured above forests in Hungary Autumn brings longer nights to the northern hemisphere, offering more opportunities to get outside and look up at the night sky. There is plenty to look out for over the coming months, from impressive meteor showers to dazzling star clusters. The series of spectacles begins with the Pleiades as the autumn nights draw in. It will be followed by the impressive Orionid meteor shower in late October, and a planetary parade, the Leonid meteor shower and a supermoon in November.

Russians seek answers over hundreds missing after Ukraine's 2024 incursion I used to have complete faith in our country, says Lyubov. The last time she spoke to her mother was a day after Ukrainian forces broke into Russia's Kursk region more than two years ago. Now she feels resentful towards the [Russian] state, in a country where most people avoid criticising the full-scale invasion unleashed on Ukraine in February 2022. The local governor says more than 300 Russians are still missing in Kursk region, but no-one really knows the true figure. Lyubov says she tried to persuade her mother to leave her village in the Sudzha area, but blames Russian state TV propaganda for her refusal to listen.

Some dentists say more young people are grinding their teeth - are you one of them? Ella can't remember when she first started grinding her teeth at night, but she can vividly recall the excruciating jaw ache, the headaches, and being told her molars were disappearing. I was in so much pain, Ella says. My face was changing shape and my teeth were at risk of breaking - I knew I had to do something about it. The 31-year-old has bruxism, a condition which can cause regular and often intense teeth grinding, but says the treatment she's recently had has without a doubt changed her life.

Mention Lucy Letby and you're likely to get a strong reaction. The nurse was sentenced to spend the rest of her life in prison for murdering seven babies and attempting to murder seven more. But though two juries have convicted her, and she has twice been denied permission to appeal, it seems everyone has an opinion on whether she really did it. She has become the centre of an information war. The name Lady Justice Thirlwall, however, attracts less recognition. She's the judge who's been tasked with examining how Letby was able to commit her crimes at the Countess of Chester Hospital in 2015-2016, and whether her managers should have responded differently when suspicions about her were raised.

Theirs is a story straight out of a Bollywood film. Two Indian-born women in their 40s, adopted as babies by different families and raised near each other in the Netherlands, have now discovered they are biological sisters. Meena Geltink and Minal Tijssen, born in the early 1980s, were adopted from two different orphanages in the western Indian city of Mumbai within months of their birth. When they first met in their early teens at an event hosted by the adoption agency their parents had used, they were struck by the uncanny similarities in their appearance and mannerisms. Meena, now 43, remembers the day clearly.

Trump's comments on a united Ireland may have targeted audience across the Atlantic When another world leader meets US President Donald Trump the only certainty about what might happen is the uncertainty about what might happen. This was exactly the case ahead of President Trump's two-day visit to Ireland. Nobody could have predicted that by the end of the first day, the main global headline would be his desire to see a unified Ireland . As the shockwaves of his remarks rippled through this island and Great Britain, it was unclear whether this represented a new US administration policy, or an off-the-cuff remark from a president who likes to take questions from reporters, and likes to give answers. Former Republican Congressman Mick Mulvaney was Trump's special envoy to Northern Ireland in his first term in office. He cautioned against anyone reading too much into the president's remarks.

Catherine, Princess of Wales has visited the hospital where she was treated for cancer after completing a charity climb to help fund a new unit there earlier this year. Catherine carried out the Three Peaks Challenge in June, which involves climbing the highest peaks in England, Scotland and Wales within 24 hours, in aid of the Royal Marsden in London. The amount of money she raised has not been made public, but it will go towards a new unit offering complementary healing alongside clinical care. The princess, who announced she was receiving cancer treatment in March 2024, spoke to patients and staff about the importance of supporting patients with more than just physical treatment. Catherine sat down and chatted to those receiving treatment at the hospital on Friday, including patients with breast cancer, head and neck cancer and a brain tumour.

'I was beating adults at chess when I was eight' When I was eight or nine I was beating adults at chess and they were raging when they lost, like'I just lost to a little kid'. Ethan first became interested in chess when he was six years old after he spotted someone else playing. Now 13, he plays for Strand Chess Club in east Belfast and has represented Ireland through all his age groups. Last week he became the youngest Ulster chess champion in history - not just in his age category but across all ages. I was really surprised because I've never won any of the big tournaments before, I've always got so close and I managed to win it in the end, Ethan told BBC News NI.