Neurobiology: Caught in the act. Researchers may have seen the signature of a memory in the making. In monkeys that learnt to associate two stimuli, single neurons changed their responses before, during or after learning became evident

Developmental biology: Boundary lines. Embryonic development is a complicated business, as a recent meeting bore witness? The signals generated at the boundaries between compartments were a key topic of discussion

Astronomy: An early stellar nursery Searching for distant objects in our Universe is equivalent to looking back in time, to the early origins of stars and galaxies. The most distant object known shows the earliest evidence of star formation