A man’s search for his daughter’s killer, the secrets to spotting a liar – and what is hot divorcee energy?

1. He hunted for his daughter’s killer for 40 years. Then he got a phone call Tim Miller searches for his daughter’s killer. Photograph: Max Burkhalter/The GuardianJ Oliver Conroy wrote a remarkable follow-up to his widely read article from 2018 about Tim Miller, who has spent his life looking for his teenage daughter Laura’s killer. Nearly eight years on, Oliver revealed how the case, and many others, were unlocked after Miller received a strange tip-off.Read more2. Hot divorcee summer: get ready for big hats, hot sex and don’t-care energyDon’t-care energy. Photograph: Jordi Mora igual/Getty Images

double quotation markDivorcee is an energy, it’s not a legal status. You don’t have to be divorced

Released from wedlock and in the mood for some fun? Zoe Williams wrote about hot divorcee energy: an unvarnished devil-may-care spirit that seems to have captured the cultural moment this summer.Read more3. ‘Blindfolded, I sat down slowly. Then the interrogation began’: Iranian Nobel laureate Narges Mohammadi on the torture of solitary confinementNarges Mohammadi. Photograph: Nooshin Jafari/ Narges Foundation ArchiveA shocking, exclusive extract from Iranian Nobel peace prize laureate Narges Mohammadi that was smuggled out of prison which revealed the systemic medical neglect and physical abuse she has endured throughout her years of imprisonment in Iran. In an accompanying piece, Tess McClure explained how other prisoners helped to get Mohammadi’s writings out to the world – at vast risk to their own safety.Read moreHow to listen for lies. Illustration: The GuardianYou may think you know when someone’s trying to deceive you, but there’s a clever trick very few people are aware of – one that has eluded AI and The Traitors contestants alike. Holly Watt wrote about what our voices reveal. And if you are intrigued by this article, you will probably also be fascinated by Matthew Cantor’s piece about how our accents shape our lives.Read more5. ‘The odds are not in our favour’: who sets the Doomsday Clock – and what can they tell us about the future of humanity?Doomsday. Illustration: Guardian Design/GNM ImagingWith the wars in Iran and Ukraine, the rise of AI and climate breakdown increasing the likelihood of a nuclear war, the clock stands closer to midnight than ever before. Sophie McBain wrote this gripping read about who decides how many seconds we have left – and asks can we buy ourselves more time?Read more6. ‘The mouth is a gateway into your body’: the fascinating, frightening links between our gums and our health Photograph: KVLADIMIRV/Getty ImagesScientists are discovering more and more associations between poor oral health and everything from heart disease to dementia. Amy Fleming looked into links between oral hygiene and wider health and asked whether flossing and brushing can properly guarantee a longer life.Read more