The Download: reviving frozen pig kidneys and boosting nuclear power

This is today’s edition of The Download , our weekday newsletter that provides a daily dose of what’s going on in the world of technology. Pig kidneys that were “frozen” for a year have been brought back to life Pig kidneys that were cooled to -150 °C and stored in a freezer for months have been successfully rewarmed and shown to work again for the first time, say scientists. The kidneys, which are similar in size to human ones, were left in a glass-like state, in one case for over a year.