• Gauff defeats Jovic 6-1, 6-4 in 80 minutes

• American has yet to drop a set in New York

• Andreeva awaits in anticipated quarter-final

Coco Gauff continued her serene march through the US Open women’s draw with her most complete performance yet on Monday night, seeing off fellow American Iva Jovic 6-1, 6-4 to reach the last eight in New York for the first time since winning it all in her grand slam breakthrough three years ago.

The fourth-seeded Gauff overwhelmed Jovic with the depth of her returns and an assured blend of aggression and defense, finishing with twice as many winners (18 to nine) and half as many unforced errors (15 to 30). The 1hr 20min clinic was the latest statement in a late-summer win streak that has transformed her from a player searching for answers this time last year into perhaps the most dangerous woman in the field right now.

Who’s more likely to steal sweets from a child? According to science, it’s the rich. A study seemingly confirming our suspicions about the moral behaviour of the wealthy was one of the winners of the 2026 Ig Nobel prizes, which honour research that makes you laugh and then think. Science editor Ian Sample tells Madeleine Finlay what the researchers think could be behind the phenomenon, and they explore some of the other awards, including one for a surprising quality we look for in our friends and another for a biomechanical definition of kissing

Rich people more likely to steal children’s sweets, finds Ig Nobel prize-winning study

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In a cheap London flat with no heating, dozens of the insects swarmed, leading to a Valentine’s Day that still makes me break out in a cold sweat

I don’t know if cockroaches really could, as we’re often told, survive a nuclear apocalypse, but I can tell you this with certainty: they can definitely survive pest control. “Hopefully that should be a bit better now,” said the friendly exterminator after his first visit to our flat. By the third visit he was speaking more honestly. “The only way to get rid of your cockroaches,” he said, “would be to burn this whole block of flats to the ground.”

It was January 2003 when I moved with my girlfriend Helen into our first London flat. It’s fair to say there were red flags we probably should have spotted. It was suspiciously affordable – £140 a week for a place less than a minute’s walk from Finsbury Park tube station? Sure, the place looked pretty skanky, but it was still spacious for a studio flat. We put the price down to the fact there was absolutely no way of heating the property and signed up.

It was her very first film and it won her an Oscar. But can Callie Khouri now make it work on stage with songs? She talks about what made her write it – and how little has changed since

‘I have a world-class case of beginner’s luck,” says Callie Khouri, who won an Oscar for her very first screenplay, Thelma & Louise. She also scored a hit with her first TV series, Nashville, which lasted six seasons. And at 68, she is taking on another first by penning a musical theatre version of Thelma & Louise, hoping her luck hasn’t run out. “I hope that this is not the end of that streak,” she laughs. “That I don’t hit a wall here and slide down it like Wile E Coyote.”

Thelma & Louise isn’t an obvious bet for a musical. A story that features an abusive marriage, attempted rape, murder and double suicide doesn’t scream “jazz hands”, and Khouri had turned down offers before. “My agent said, ‘There’s a guy who wants to meet you to talk about doing Thelma as a stage musical,’” says Khouri. “And I just thought, ‘Well, that’s nuts!’” But the iconic 90s film – starring Susan Sarandon and Geena Davis (and a young Brad Pitt) – is an ultimately triumphant piece of cinema: a feminist road movie driven by the power of female friendship, which still captures imaginations. Khouri was eventually convinced. It’s been a decade in the pipeline, but things took off when uber-producer Sonia Friedman came on board, and now it has premiered at London’s Young Vic, starring Rachel Tucker and Amy Lennox.

Scientists are battling over whether supposedly simple organisms should be considered ‘intelligent’. The outcome could reshape our understanding of the natural world – and our own place within it

Forty years ago, as an undergraduate in Hokkaido, Toshiyuki Nakagaki came upon a lemon-yellow stain in a petri dish. That encounter turned him into a doyen of slime mould research – and fed a storm of biological and philosophical debate about the meanings of life and intelligence that persists to this day. Before, no one would have called a slime mould “intelligent”; the popular adjective, in fact, was “simple”. “A simple mass of protoplasm,” one 1895 description ran; “among the most simple of organisms”, said another. And it was hard to argue otherwise. A slime mould can appear to be just a small cell, capable only of feeding and reproducing. Simple is as simple does.

Of that first meeting, Nakagaki said: “I was just impressed with how fast it moved.” Physarum polycephalum, the slime mould species in that petri dish, has a top speed of 1cm an hour. For amoebic organisms, that’s gold-medal standard. At first glance, Physarum seems to spread as irregularly as ink on blotting paper, but in fact it senses its meals of bacteria or other microbes and reaches for them with a long, thin finger of protoplasm – which not only digests its food but then forages further or pulls back into the rest of the mould. It’s impossible to watch a slime mould over many days without sensing some deliberation at play.

Anglers will help scientists investigate the porbeagle, tope and blue shark to boost knowledge and conservation

‘We have really cool sharks,” says Dr Lucy Hawkes. She is not referring to animals in the rich coastal waters of South Africa or Mexico, but instead talking about the species that live around Britain. Hawkes, an associate professor at the University of Exeter, is co-leading a new three-year project to investigate the lives of three of England’s most vulnerable shark species.

“I like the porbeagle, which looks like a baby great white shark,” she says. “Surfers could see one and absolutely poop their pants, but they’re not dangerous. It’s amazing that we share the water with some pretty exciting animals.”

Anita Bazell, 88, died in Southampton during June’s heatwave after being taken to hospital with a body temperature of 41.2C. Now her son wants to raise awareness of the risks of heatstroke, particularly among elderly people

Anita Bazell had never coped with the heat very well, her family said. So they were worried about her when temperatures across the UK soared to record highs of 35C (95F) in May, and then again in June.

She was living in a nursing home in Southampton near her family, who had struggled to care for her at home due to her declining mobility. Although there were air conditioning units in the communal rooms, there was not one in Anita’s room, which was on the third floor.

While the UK and Italy are making progress, France and Germany’s joint venture came to nothing, and the prospect of more countries pulling together seems way off

When the former European Central Bank president and Italian prime minister Mario Draghi laid out a plan for Europe to catch up economically with the US and China, collaborating on defence was one of the prescriptions. No more should each country in Europe try to make its own version of a boat, tank or jet but instead share costs and technologies between allies.

Europe appears to have fallen at the first hurdle. The German chancellor, Friedrich Merz, and the French president, Emmanuel Macron, were forced to cancel the joint future combat air system in June, after fraught efforts to work together since 2018.

US-Israel war on Iran and political instability in Somalia lead to pirates targeting cargo ships off Horn of Africa

The scourge of Somali piracy targeting cargo ships and smaller dhows off the Horn of Africa has returned to levels not seen in a decade, driven by a convergence of factors including disruptions to the shipping industry caused by the US-Israeli war against Iran and a resurgence of political instability in Somalia.

Since late April there have been eight hijackings by Somali pirates, including two within the space of a fortnight in August: one targeting an oil tanker with ties to Iran, the other a Cameroon-flagged vessel, the Lutuf, carrying military equipment for Turkey.