After my parents split up, my older sister and I lived with our dad while the youngest stayed with our mum. It became an experiment in nature v nurture - and had a profound effect on our relationships

There is a paradox at the heart of sibling relationships and it is this: that children raised in the same family are for ever bound by shared experiences, yet have different childhoods. The paradox is partly (and most commonly) explained by the topic of birth order theory – the idea that your position in the family shapes your personality and potential. Oldest children, for example, are born into an adult world, full of grown-up language and behaviour. Governed by anxious, inexperienced but still fresh parents, they bask in the glow of undivided attention. Their infancy will be markedly different to that of their little brother or sister who will be born into a family. These second-born children have a toddler as their role model/ally/nemesis, no new clothes, and they also have to share their parents’ attention. These parents are a little less fresh and little more savvy. By the time any subsequent children come along, parents are at their most relaxed and most exhausted. Youngest children get away with a lot (spoken as a true middle sibling).

But neat as birth order theory may be, our place in the family roll call cannot fully account for the ways in which we grow up “together apart” as siblings. To do that, we must examine – and in some cases untangle – all of the knottiness underpinning our accepted roles as “responsible firstborns”, “problematic middles” or “spoilt babies”. We need to look at the home environment, the state of the parents’ relationship, their careers, the pressures placed on each child on account of gender or aptitude, the expectations in families where a child has additional needs – or indeed, in the worst-case scenario, where a child may not have survived – before we can begin to comprehend our brother’s or sister’s version of events. Difficulties typically arise because of the slipperiness of memory, often shot through with profound emotions – making it hard to pull together a coherent and agreed-upon story of our pasts.

Even as the first western journalist to interview Ayatollah Khomeini, I had no inkling of what was to come. Perhaps we should have learned from history

Watching Iran in flames, I can’t help wondering whether history is coming a grotesque full circle 47 years after the fall of the US-backed Pahlavi dynasty, or whether western powers are simply repeating past errors by attempting violent regime change from outside.

As a young reporter, I had a ringside seat for part of the 1979 revolution that overthrew Shah Mohammad Reza Pahlavi and installed an austere Islamic republic headed by a Shia Muslim cleric with the titles of “leader of the revolution” and “guardian jurist” (vali-e faqih).

Firing Peter Mandelson, convening with Marco Rubio – then handling the fallout of conflict in the Middle East… it’s been a busy time for the secretary of state, and our writer has had a ringside seat

Before Yvette Cooper joins me in a plush side room at the Foreign Office, an aide comes in and draws the heavy curtains. Outside is Horse Guards Parade. I can see a strip of Downing Street, a patch of the No 10 garden, daffodils in bloom. I say that it’s a shame to block the light on such a beautiful spring afternoon. The aide coughs, embarrassed, and explains that it’s actually for security.

So that people can’t see in?

Cern researchers are testing traps capable of moving antimatter, which explodes into energy as soon as it comes into contact with regular matter

When the truck pulls away from the building at Cern, the European particle physics laboratory near Geneva, all eyes will be on its precious cargo, a one-tonne device containing some of the most exotic material on Earth.

The 20-minute test run around the campus, pencilled in for later this month, will mark the world’s first attempt to transport antimatter, a substance so delicate that when it meets normal matter, both are consumed in a burst of pure energy.

Datacentre investment boom is one of the biggest infrastructure gambles of this era, and Britain may be uniquely exposed

Stargate was to be the world’s biggest AI investment: a $500bn infrastructure project to “secure American leadership in AI”. Never shy of hyperbole, its key backer, the ChatGPT-maker OpenAI, promised “massive economic benefit for the entire world” with facilities to help people “use AI to elevate humanity”.

Now, OpenAI appears to be dropping out of a part of the deal – the expansion of a flagship datacentre stretching across a swathe of land in Abilene, Texas, which has become one of the most visible manifestations of a frenzy of investment in the chips and power plants required to build and run AI. There has been a breakdown in negotiations over project financing, as well as the timeline of when the expanded capacity might come online.

The author on failing at atheism, why she lost her place at Cambridge, and bringing back Hilary Mantel

Born in Essex, Sarah Perry, 46, studied English at Anglia Polytechnic University and worked as a civil servant before taking a PhD in creative writing and the gothic at Royal Holloway, University of London. Her first novel, After Me Comes the Flood, was published in 2014. Her second, The Essex Serpent, was Waterstones Book of the Year in 2016, a Radio 4 Book at Bedtime and adapted for television. Her other works include Melmoth and Enlightenment, the latter of which was longlisted for the Booker prize, and Death of an Ordinary Man, which won the 2025 Nero Non-Fiction Book award. She is married and lives in Norfolk.

What is your greatest fear?
Not being loved.

Oil loading operations reportedly suspended at key UAE port after intercepted drone sparks fire

• How have you been affected by the latest Middle East events?

Iranian media has reported there is no damage to its oil infrastructure on Kharg Island, following US attacks that Trump claimed had “obliterated” military targets on the Island.

Iran’s armed forces have threatened to destroy US-linked oil infrastructure if its own energy facilities are hit. Kharg Island serves as the export terminal for 90% of Iran’s oil shipments.

Mood among some in Iran shifts from hope of being rescued to dismay at destruction of infrastructure, culture and lives

After years of arrests, disappearances and mass killings of protesters, the hatred in Iran from some quarters for the hardline, oppressive governing regime had boiled into such a desperate rage that many believed Donald Trump’s promise that the US would “come to their rescue”.

Now, after a fortnight of war, with US and Israeli airstrikes killing hundreds as they hit residential blocks, shops, fuel depots and even a school, the mood is changing.

Refusal to kowtow to US president has won public backing – and left Badenoch and Farage playing catch-up

It is not often that Keir Starmer’s allies believe he has Nigel Farage and Kemi Badenoch on the run – but on Iran, they think he is on the right side of history and public opinion.

“It could be the making of him,” said Emily Thornberry, the Labour chair of the foreign affairs committee, who was first out of the blocks to say she thought Donald Trump’s strikes on Iran were illegal. “You’ve not had a British prime minister say no to an American president since Vietnam. This is a big deal.”

Communities displaced and destroyed while death toll rises faster than during any previous war in Lebanon

For Batoul Hamdan and her two children, seven-month-old Fatima and Jihad, three, Monday’s iftar, the evening meal that breaks the daily fast during Ramadan, was special.

For a week, they had eaten to the sounds of bombs in their home in Arab Salim. Hamdan eventually decided to leave for Al-Nimiriya, the sleepy town where she had grown up. Surrounded by her parents and siblings in the family home, she hoped they could finally enjoy the festive mood of Ramadan.