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The desire to mitigate climate change, and opportunities to empower consumers in the developed and developing worlds, all point towards a need for less-centralized energy generation. It's time to further boost hydrogen research.
Last year's movie smash Finding Nemo impressed many marine biologists with its scientific accuracy. Alison Abbott meets the young expert in fish biomechanics who helped to breathe life into the film's stars.
If you go back far enough, humans, frogs, bacteria and slime moulds share a common ancestor. But scientists can't agree what it was like, or even whether it was a single creature. John Whitfield reviews the evidence.
The adult human brain cannot replace lost neurons. This might be because it is reluctant to accept newcomers into an already established neural network, rather than because potential progenitors are absent.
Changes in the amount of solar energy reaching Earth account for certain climate cycles at high and low latitudes. Surprisingly, the effects of a high-latitude cycle evidently reached into the tropics.
Organ development requires precise regulation of both the total number and the different types of cells. Much is known about how each process is controlled, but new light has been shed on how the two are linked.
In quantum theory, the magnetic moment of the muon should be twice the value calculated classically, although in fact their ratio is not exactly two. Theory and experiment disagree on quite how far from two it is.
The rise of malaria in Africa is a subject of much debate. A new analysis emphasizes the influence of rainfall, but there appear to be few areas where climate has been a major driver of this change.
Copper oxides superconduct at unusually high temperatures. New evidence from optical studies highlights the nature of the many-body interactions involved.
In Europe, short-term contracts are no longer just for the first postdoc. Karen Kreeger looks at the bewildering variety of terms and conditions on offer.
