US accelerates plans for nuke 24 times more powerful than Hiroshima bomb amid WWIII fears

More from Science & Technology

• New AI Chibi figure trend is taking over social media - here's how you can transform into a pocket-sized toy

• People left 'mindblown' after learning how tin foil improves your Wi-Fi

• Dog owners rate their bond with their pet as MORE satisfying than their relationships with their friends, partner and even their children, study finds

• Scientists are BAFFLED after spotting a lone black hole drifting through space - with no star orbiting it

• Thousand-year-old prophecy predicts next Pope after Francis dies... and issues a chilling warning for humanity

• Steam spotted billowing from massive US volcano as American city braces for imminent eruption

• The science of how Pope Francis will be embalmed: Step-by-step, how the body is prepared to lie in state for three days - without showing obvious signs of decomposition

• Urgent warning to all 1.8b Gmail users over 'sophisticated' attack stealing personal information

• Wild chimps are filmed scoffing 'boozy' fruit with their friends - and it could help to explain our love of the pub

• Revealed: The facial hair that women find the most attractive - and it's bad news for men with bushy beards!

• 'Gateway to the underworld' beneath ancient Mexican pyramid hints at advanced civilization

• The DeLorean is on the brink of EXTINCTION: Just 303 Back to the Future cars remain on UK roads, figures reveal

• Lyrid Meteor Shower peaks tonight with up to 15 shooting stars flying overhead every hour - here's the best time to see the celestial display

• The sunniest city in Europe revealed - with £2.50 pints, 29C highs and £34 return flights from the UK

• You're storing your leftovers wrong! Expert reveals why you should NEVER use aluminium foil on the remnants of your Easter feast

• I have rare brain condition that means I'm 'severed' like characters from hit Apple TV show

• The simple trick that reveals if YOUR child is being cyber-bullied

• Jesus returns as an AI INFLUENCER who you can video call in real-time - but, there's a catch

• Posh accents make you sound clever, say kids - and it's bad news if you're from Yorkshire!

• Incredible tale of the only man to sneak into Area 51 and get out alive... here's what he saw