EarthShocking state of world's riskiest nuclear waste site Huge pools of mystery sludge, leaking silos and risk of explosions: Sellafield needs help, but the UK government has just sacked the firm running the clean-up News
TechnologyComplex fusion reactor takes shape as start date slips A magnet that will support the world's most complex machine is finally being built – but the ITER fusion reactor's start date is delayed until 2023 News