The Manhattan Project, set up during the Second World War in 1942, was guided by fear that if the US and its allies didn’t make them first, Hitler’s Nazi scientists would.
A left-wing theoretical physicist not known for his leadership qualities or laboratory acumen, the American was an unconventional pick but proved a devastatingly effective one.
As blockbuster biopic Oppenheimer hits cinemas, Sky News looks at how the father of the atomic bomb still shapes the world decades after his creation was deployed.
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0:52
Oppenheimer film ‘puts audience in bunker’
An unusual recruitment
Oppenheimer was appointed by General Leslie Groves, the project’s military leader, to head up Site Y – a secret weapons research facility at Los Alamos, New Mexico.
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But there were, as Oppenheimer biographer Professor Ray Monk puts it, “all sorts of reasons” not to appoint him, notably perceived association with communist organisations that had made him a suspect of the FBI.
Born to a Jewish family in New York in 1906, his student years had seen him drawn to the left as Germany’s fascist regime saw friends and relatives oppressed and forced to flee.
During studies at Harvard, Cambridge, and Germany‘s Gottingen university in the 1920s, he was known for being a “disaster in the laboratory”. Of his time studying physics at Harvard, Oppenheimer himself said: “My feeling about myself was always one of extreme discontent.”
Image: Oppenheimer worked in education before and after the war
He may have been unconvincing in the lab, but found his calling as a university lecturer in California. His ability to explain complex science in a relatively straightforward and compelling way proved key to impressing Groves, who interviewed countless scientists before a chance meeting with Oppenheimer.
Crucially, he also recognised the need for urgency.
Prof Monk says: “Oppenheimer knew Heisenberg, one of the greatest scientists in the world, who he worked with at Gottingen, was leading the Nazi bomb project and was worried they would get one before the Allies.
“He was in no doubt at all – the duty of all scientists in the US, and the allied countries, was building a bomb first.”
Image: Oppenheimer enjoyed an unconventional relationship with Leslie Groves. Pic: Digital Photo Archive, Department of Energy
Building the bomb
Los Alamos was one of three sites critical to the development of the atomic bomb.
The others were a factory in Hanford, Washington, where plutonium was made; and a hidden base in Oak Ridge, Tennessee, for enriching uranium.
The basis of the atomic bomb is the process of nuclear fission – when the nucleus of an atom is split into two smaller nuclei, releasing a large amount of energy in the process.
This was discovered in 1938 by two German scientists, and Oppenheimer realised its destructive potential when word reached him in 1939.
The prospect of weaponising nuclear fission focused the minds of scientists across Europe, with plutonium and uranium identified as elements that could undergo the process.
With the process understood, the race was on to weaponise it.
Cynthia C Kelly is founder and president of the Atomic Heritage Foundation, dedicated to the preservation of the Manhattan Project and crucial to having the three sites gain national park status in the US.
“It was a first-of-a-kind effort across the board,” she says of the Manhattan Project, named after the New York City district where it was founded.
With the city that never sleeps deemed too busy for such a secretive initiative, the three laboratories were set up in isolated places far away from urban centres and the coast. They brought together geniuses from across America and overseas – including Britain and some who fled Nazi Germany – into one single-minded pursuit.
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“It required creative minds from the machinists to the craftsmen – everything had to be perfect,” Kelly adds, with a “classic absent-minded professor” at the heart of it.
“They had to take this energy, which had been uncontrolled up to now, figure out how to control it, and package it tightly enough to fit in the bomb bay of an aeroplane that could transport it and drop it.
“They had little confidence in harnessing this technology in time for the end of the war.”
Image: Oppenheimer on the test ground for the atomic bomb near Almagordo, New Mexico
Becoming Death
But harness it they did – and the world would change forever.
The first atomic bomb test in New Mexico happened on 16 July 1945, after which Oppenheimer uttered a line that, along with his trademark fedora and pipe, has become quintessential to his public image.
“Now I am become Death, the destroyer of worlds,” he observed after the so-called Trinity Test, quoting a sacred Hindu text in a reminder of his acumen as a philosopher as well as a scientist.
A few weeks after, death followed on an unimaginable scale. On 6 August, a uranium-based bomb named Little Boy was detonated over Hiroshima; and another, Fat Man, was dropped on Nagasaki three days later.
Image: The atomic bomb dropped on Japan’s Nagasaki in 1945
Both cities were left unrecognisable, 200,000 people died, and Japan surrendered. Oppenheimer was shaken.
“Right up until the dropping of the bomb on Hiroshima, he had no moral qualms whatsoever,” says Prof Monk.
“Even when the Germans surrendered (on 7 May 1945), and it was obvious the Americans were still going to use the bomb against the Japanese, he had no qualms.
“But he thought one demonstration of the awesome power of this weapon was enough.”
Image: Hiroshima in March 1946, six months after America’s atomic bomb was dropped
A new world
Despite its undoubted role in ending the Second World War, which cost the lives of some 90 million people, Oppenheimer was changed by the atomic bomb, believing it made the prospect of future conflict “unendurable”.
“It has led us up those last few steps to the mountain pass; and beyond there is a different country,” he said in 1946, later signalling his opposition to his government’s plan to develop even bigger nuclear weapons.
Oppenheimer was ignored and held in deep suspicion, and his security clearance at the Atomic Energy Commission eventually rescinded. He died of lung cancer in 1967 with none of the power he once yielded.
Image: Oppenheimer testifies before the Senate military affairs committee in Washington in 1945
Nuclear weapons have not been used again, but the threat lingers. America and Russia’s arsenals are far smaller than their Cold War peak, but they hold 90% of an estimated global stockpile of 13,000 weapons.
Ever since Oppenheimer witnessed the Trinity Test in the New Mexico desert, Cynthia C Kelly says there’s been “no way to put the genie back in the bottle”.
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Two cities devastated beyond recognition have seemingly served as the ultimate deterrence.
“Oppenheimer was invited to say he regretted developing the atomic bomb many times, most prominently when he visited Japan, and his answer was always no,” says Prof Monk.
“It can be argued the fact the weapons have never been used again shows deterrence works.”
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2:39
Will Russia use nuclear weapons?
Beyond deterrence, the Manhattan Project also unleashed an era of science and innovation still being felt today, including nuclear energy vital to weaning ourselves off greenhouse gases.
Virginia Giuffre, who accused Prince Andrew of sexual assault, has died aged 41.
In a statement to Sky’s US partner network NBC News on Friday, her family said she took her own life in the Perth suburb of Neergabby, Australia, where she had been living for several years.
“It is with utterly broken hearts that we announce that Virginia passed away last night at her farm in Western Australia,” her family said.
“She lost her life to suicide, after being a lifelong victim of sexual abuse and sex trafficking.
“Virginia was a fierce warrior in the fight against sexual abuse and sex trafficking. She was the light that lifted so many survivors.
“In the end, the toll of abuse is so heavy that it became unbearable for Virginia to handle its weight.”
Image: Pic: AP
Police said emergency services received reports of an unresponsive woman at a property in Neergabby on Friday night.
“Police and St John Western Australia attended and provided emergency first aid. Sadly, the 41-year-old woman was declared deceased at the scene,” a police spokeswoman said.
“The death is being investigated by Major Crime detectives; early indication is the death is not suspicious.”
Sexual assault claims
Image: Prince Andrew has denied all claims of wrongdoing. File pic: Reuters
Ms Giuffre sued the Duke of York for sexual abuse in August 2021, saying Andrew had sex with her when she was 17 and had been trafficked by his friend, the billionaire paedophile Jeffrey Epstein.
The duke has repeatedly denied the claims, and he has not been charged with any criminal offences.
In March 2022, it was announced Ms Giuffre and Andrew had reached an out-of-court settlement – believed to include a “substantial donation to Ms Giuffre’s charity in support of victims’ rights”.
She stuck by her version of events until the end
Of the many dozens of victims of Jeffrey Epstein, it was Virginia Giuffre who became the most high-profile.
She was among the loudest and most compelling voices, urging criminal charges to be brought against Epstein, waving her right to anonymity in 2015.
She told how he and Ghislaine Maxwell groomed her and “passed around like a platter of fruit” to be used by rich and powerful men.
But her name and face became known around the world after she accused Prince Andrew of sexually abusing her when she was 17 years old.
The picture of her together with the prince and Maxwell at the top of a staircase, his hand around her waist, is the defining image of the whole scandal.
Prince Andrew said he had no memory of the occasion. But Giuffre stuck by her version of events until the end.
‘An incredible champion’
Sigrid McCawley, Ms Giuffre’s attorney, said in a statement that she “was much more than a client to me; she was a dear friend and an incredible champion for other victims”.
“Her courage pushed me to fight harder, and her strength was awe-inspiring,” she said. “The world has lost an amazing human being today.”
“Rest in peace, my sweet angel,” she added.
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Dini von Mueffling, Ms Giuffre’s representative, also said that “Virginia was one of the most extraordinary human beings I have ever had the honour to know”.
“Deeply loving, wise, and funny, she was a beacon to other survivors and victims,” she added. “She adored her children and many animals.
“She was always more concerned with me than with herself. I will miss her beyond words.
“It was the privilege of a lifetime to represent her.”
Ms Giuffre said at the end of March she had four days to live after a car accident, posting on social media that “I’ve gone into kidney renal failure”. She was discharged from hospital eight days later.
Raised mainly in Florida, she said she was abused by a family friend early in life, which led to her living on the streets at times as a teenager.
She said that in 2000, she met Ghislaine Maxwell, a British socialite who was convicted in 2021 on federal sex trafficking and conspiracy charges and was sentenced to 20 years in prison.
Image: Ghislaine Maxwell and Jeffrey Epstein. Pic: US Department of Justice
Ms Giuffre said Maxwell then introduced her to Epstein and hired her as his masseuse, and said she was sex trafficked and sexually abused by him and associates around the world.
‘A survivor’
After meeting her husband in 2002, while taking massage training in Thailand at what she said was Epstein’s behest, she moved to Australia and had a family.
She founded the sex trafficking victims’ advocacy charity SOAR in 2015, and is quoted on its website as saying: “I do this for victims everywhere.
“I am no longer the young and vulnerable girl who could be bullied. I am now a survivor, and nobody can ever take that away from me.”
:: Anyone feeling emotionally distressed or suicidal can call Samaritans for help on 116 123 or email jo@samaritans.org in the UK. In the US, call the Samaritans branch in your area or 1 (800) 273-TALK.
Donald Trump has met Volodymyr Zelenskyy ahead of the Pope’s funeral, Vatican sources have told Sky News.
The US and Ukrainian presidents had a “very productive discussion”, according to a White House Official, and have also agreed to hold further talks after the service.
They are among world leaders, including Sir Keir Starmer and Emmanuel Macron, who are attending the funeral of Pope Francis.
There was applause from some of those gathered in St Peter’s Square when the Ukrainian leader walked out.
The former British ambassador to Russia Sir Tony Brenton said the event presents diplomatic opportunities, including the “biggest possible meeting” between Mr Trump and Mr Zelenskyy.
Image: Trump and Zelenskyy meet for first time since Oval Office row. Pic: Reuters
He told Sky News it could mark “an important step” in starting the peace process between Russia and Ukraine, and is their first face-to-face meeting after a very public row between the presidents at the White House in February.
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The bilateral meeting comes after Mr Trump’s peace negotiator Steve Witkoff held talks with Vladimir Putin at the Kremlin.
They discussed “the possibility of resuming direct negotiations between Russia and Ukraine”, Kremlin aide Yuri Ushakov said.
Russia and Ukraine have not held direct talks since the early weeks of the war, which began in February 2022.
Mr Trump has claimed a deal to end the war is “very close” and has urged Mr Zelenskyy to “get it done” in a post on his Truth Social platform.
He has previously warned both sides his administration would walk away from its efforts to achieve a peace if the two sides do not agree a deal soon.
Meanwhile, the Polish Armed Forces said a Russian military helicopter violated its airspace over the Baltic Sea on Friday evening, in a post on X.
This breaking news story is being updated and more details will be published shortly.
Donald Trump has said Russia and Ukraine are “very close to a deal” with “most of the major points agreed” – as he called for the two sides to meet.
Shortly after arriving in Rome for Pope Francis’s funeral, the US president said high-level officials should now meet to “finish [the deal] off”.
“A good day in talks and meetings with Russiaand Ukraine,” Mr Trump wrote on his Truth Social platform.
“They are very close to a deal, and the two sides should now meet, at very high levels, to ‘finish it off’.
“Most of the major points are agreed to. Stop the bloodshed, NOW. We will be wherever is necessary to help facilitate the END to this cruel and senseless war!”
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2:26
Ukraine-Russia peace talks explained
Throughout the week, the US president has criticised both Ukraine and Russia for failing to agree to a peace deal.
On Wednesday, he accused Mr Zelenskyy of harming talks on Truth Social, saying “the man with ‘no cards to play’ should now, finally, GET IT DONE”.
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A day later, after nine people were killed in Kyiv after a Russian missile and drone strike, Mr Trump said: “Vladimir, STOP! 5000 soldiers a week are dying. Let’s get the Peace Deal DONE!”
The president and other officials have also threatened to withdraw from negotiations if no progress is made toward a deal.
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2:24
Putin-Witkoff meeting
The talks allowed Russia and the United States to “further bring their positions closer together” on “a number of international issues”, a Kremlin aide said.
Speaking earlier on the flight to Italy, Mr Trump said he hadn’t been fully briefed on Mr Witkoff and Mr Putin’s meeting – but added it was a “pretty good meeting”.
Russia and Ukraine have not held direct talks since the early weeks of the war, which began in February 2022.
Ukraine has repeatedly said it would not accept a deal conceding land or handing over sovereignty to Russia.
However, Mr Trump said in an interview with TIME magazine that “Crimea will stay with Russia,” describing the region as a place where Moscow has “had their submarines” and “the people speak largely Russian”.
“Zelenskyy understands that, and everybody understands that it’s been with them for a long time,” he added. “It’s been with them long before Trump came along.”
When asked on Friday about Mr Trump’s comments, Mr Zelenskyy did not want to comment but repeated that recognising occupied Ukrainian territory as Russian is a red line.