Wall of ice to stop Fukushima radiation leak
Radiation levels are spiking at a Japanese nuclear plant as deadly pollutants seep into the ocean, forcing the government to take desperate measures. Is nuclear energy worth the price?
Robot explorer finds ancient lakes on Mars
The Mars rover Curiosity has found evidence that water once flowed on Earth’s next-door neighbour. Why is this exciting? Because where there is water, there may be life.
Europe joins global race over ‘miracle material’
Light, flexible and super-strong, graphene is set to revolutionise areas as diverse as medicine, electronics and sport. But can it really start a new industrial revolution?
‘Breakthrough’ cancer treatment too pricey for NHS
A new drug seemed set to offer cancer patients a possible lifeline. Now the UK’s health service says it is not worth the cost – but can you really put a price on someone’s life?