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Updated [hour]:[minute] [AMPM] [timezone], [monthFull] [day], [year] Scientists have created miniorgans from cells floating in the fluid that surrounds a fetus in the womb – an advance they believe could open up new areas of prenatal medicine.Miniorgans, or “ organoids,” are tiny simplified structures that can be us...

It would be great if everyone could back up the intermittent power from wind and solar plants with energy stored as low-cost, zero-carbon hydrogen gas. But hydrogen can be hard to store. Last month, when the Royal Society advised the British government to start building underground caverns to store megatons of hydro...