Objectives To systematically collect and analyse diverse definitions of ‘evidence’ in both health and social sciences, and help users to correctly use the term ‘evidence’ and rethink what is the ...

T he first time I heard about galaxies without dark matter, I was sitting in my very first graduate class at the University of São Paulo. It was 2018, and the discovery had just ...

A new study challenges the traditional boundaries of the habitable zone, showing that liquid water could exist on the dark sides of tidally locked planets or beneath thick ice on distant worlds. For ...