Trump says U.S. will resume nuclear bomb testing
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The Russian military claims to have flown its Burevestnik nuclear-powered cruise missile 8,700 miles over 15 hours.
Nuclear technology company Oklo has no revenues, no licence to operate reactors and no binding contracts to supply power. But this has not stopped the Silicon Valley-based start-up from riding a wave of investor enthusiasm that has propelled its stock market valuation above $20bn, a rise of more than 500 per cent since the turn of the year.