Inside the volcano 4,000 years old
The 4,000-year-old Thrihnukagigur volcano in Reykjavik (Iceland) just stopped working about 40 years ago. It is now considered a sleeping volcano because it can wake up at anySuccessfully implanted artificial trachea made from stem cells
Scientists have used the patient's own cells to create artificial airways, reducing the risk of the body not accepting the implant.