LifeBubbles of fat hint at origin of reproduction One of life's fundamental properties – its ability to make copies of itself – may have originated with bubbles of fat that spontaneously break up ¿ìè¶ÌÊÓÆµ
HealthPhysics not biology may be key to beating cancer Billions of dollars spent on cancer research have yielded no great breakthrough yet. There are other ways to attack the problem, says physicist Paul DaviesOpinion