Brazil's farm expansion has left a vast soil carbon debt—but one fix could help meet climate goals

Archaeologists and researchers at the ancient Roman site of Pompeii have used artificial intelligence for the first time to digitally reconstruct the face of one of the victims of the AD 79 eruption of Mount Vesuvius that smothered the city, offering a new way to understand one of history's most famous natural disasters.

Medical scientists are stricter while natural, social and humanities scientists are more permissive. The attitude to ethically problematic ways of conducting research differs clearly between disciplines, according to a study from Linköping University, Sweden.

Science has long taken inspiration from the natural world, and few natural designs are as iconic as the helical shape that makes life possible. The best-known example of such a molecule is DNA, a double helix that carries the genetic instructions for all living organisms.