When it comes to organ donation, time is everything. As soon as an organ has been carefully removed from a donor's body, it starts to deteriorate. Surgeons have a matter of hours to get it into a recipient. Leave it too long and the organ will become unusable. In most cases, organs will be kept...

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. Supercooled kidneys have been transplanted into pigs in a landmark achievement" When it comes to organ donation, time is everything. As soon as an organ has been removed from a donor's...