Jenny Kleeman investigates ‘Biotech Barbie’ Cathy Tie, the controversial entrepreneur hoping to revolutionise human reproduction by letting parents edit their embryos. Help support our independent journalism at theguardian.com/infocus

A shocking report into the biggest ever maternity care scandal in the NHS has revealed more than 500 mothers and babies died or were harmed as a result of inadequate care in Nottingham. The review, led by the senior midwife Donna Ockenden, found there had been a dismissive attitude to women’s concerns, failures in maternity care, staff shortages, a toxic culture and racism at Nottingham University hospitals NHS trust. Lucy Hough speaks to the Guardian’s UK health and inequalities correspondent Tobi Thomas – watch on YouTube. Help support our independent journalism at theguardian.com/infocus

A decade after Brexit, the UK simply can’t shake the legacy of the referendum. But with shifting public opinion and the rise of Andy Burnham, could Britain be plotting a path back to the EU?. Help support our independent journalism at theguardian.com/infocus

Europe is dealing with a debilitating heatwave, with schools closed, trains cancelled and France holding an emergency meeting after heat-related deaths. António Guterres, the UN secretary general, is urging the world to act on fossil fuels as the continent braces for record-breaking heat. Lucy Hough speaks to Europe environment correspondent Ajit Niranjan – watch on YouTube. Help support our independent journalism at theguardian.com/infocus

The UK has lost its sixth prime minister in a decade. How did Keir Starmer go from landslide victory to resigning in two years?. Help support our independent journalism at theguardian.com/infocus

Keir Starmer has announced he is standing down as prime minister after days of intense pressure from Labour MPs, including cabinet ministers, following Andy Burnham’s byelection victory in Makerfield. Wes Streeting has ruled himself out of the running, so will it be a coronation for the ‘king of the north’ or could another candidate emerge? Lucy Hough speaks to senior political correspondent Peter Walker – watch on YouTube. Help support our independent journalism at theguardian.com/infocus

Guardian news editor David Batty spent years longing to meet his birth mother. But his reunion with the woman who had been forced to give him up was far from a fairytale ending. He explains why the legacy of forced adoption continues to cast such a long shadow. Help support our independent journalism at theguardian.com/infocus

Glamorous, rich and well-connected, Julie Meyer was a darling of the dotcom boom. But people who worked with the entrepreneur complain about unpaid wages, debts to suppliers and missing money. Journalist Olivia Lee and the Guardian’s investigation team unravel her story. Help support our independent journalism at theguardian.com/infocus

Andy Burnham’s resounding win in the Makerfield byelection has set the stage for a leadership battle with Keir Starmer. The outgoing mayor of Greater Manchester received more votes than Reform and Restore combined, and the nature of the victory has prompted speculation he could replace Starmer as prime minister within weeks, if not days. Annie Kelly speaks to political correspondent Alexandra Topping Andy Burnham wins by huge majority. Help support our independent journalism at theguardian.com/infocus

Glamorous, rich and well-connected, Julie Meyer was a darling of the dotcom boom. But people who worked with the entrepreneur complain about unpaid wages, debts to suppliers and missing money. Journalist Olivia Lee and the Guardian’s investigations team unravel the complicated story. Help support our independent journalism at theguardian.com/infocus

Donald Trump is claiming his Iran peace plan is a victory for Washington, despite the 14-point agreement revealing significant concessions to Tehran. Under the deal, Iran will reopen the strait of Hormuz in exchange for sanctions relief and the release of frozen assets, while talks will continue over the fate of Iran’s nuclear programme. Nosheen Iqbal speaks to the Guardian’s diplomatic editor, Patrick Wintour – watch on YouTube. Help support our independent journalism at theguardian.com/infocus