The science stories that shook 2018

Our guest scientists pick the breakthroughs and discoveries that defined their year, from insights into human evolution to our first trip aboard an asteroidTake a deep breath. Dive into the emerald water. It’s 13 minutes and 70 metres down to lunch. Are you dead yet? Not if you are one of the Bajau “sea nomads” of south-east Asia, who have been free-diving like this for more than 1,000 years, relying on their remarkable physiology, and, as we learned in April, their genes. Huma