Thirty years ago, Françoise Barré-Sinoussi found an unidentified virus in a patient with Aids – work which won her a Nobel Prize. She talks to Andrew Jack about the continuing battle with the disease
How Darwin’s theory of natural selection is helping cosmologists to refine the idea that universes produce daughter universes via the formation of black holes
A manifesto for the language of youth
Michel Serres thinks this texting, tweeting, Instagramming world is not stupid