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The confirmation that neutrinos have mass and can switch identity is a triumph of careful experiment that opens doors for theoretical physicists. It is not a crisis for existing models, but a route to deeper ones.
Chinese-Americans form a cornerstone of the US scientific workforce. Yet recent developments have led some to question whether they are fully accepted by their colleagues. Josette Chen reports.
A parasitic bacterium that uses an array of dastardly tricks to favour female hosts over males is holding evolutionary biologists in thrall. Jonathan Knight enters the strange world of Wolbachia.
Theories predict that galaxies grow by swallowing smaller galaxies, which may then show up as galactic debris. Astronomers think they have found one such tell-tale structure in a nearby galaxy.
At some time in life's history, microorganisms started to make metabolically usable nitrogen from N2 in the atmosphere. A provocative proposal accounts for the 'why and when' of that event.
Proteins with quite mundane functions in healthy cells often behave very differently during cell suicide. One protein normally involved in copying mitochondrial DNA actually degrades nuclear DNA in dying cells.
For more than 30 years scientists have puzzled over the mystery of the missing neutrinos emitted from the Sun. Data from underground detectors in Canada and Japan combine to provide the answer.
The formation of new animal species often results from divergence in male sexual behaviours and female preferences. The genetic basis of this sexual isolation in fruitflies is gradually being revealed.
Quantum tunnelling breaks the rules of classical physics — and leads to ghost-like transfer of matter through barriers. Demonstrations of a new type of quantum tunnelling have the ghosts taking new liberties.
The greater the plant diversity in an ecosystem, the greater the ecosystem's productivity. A new analysis indicates that the higher productivity results from complementary patterns of species resource use.
Earth's climate has changed significantly over the past several million years. New theoretical work suggests that the climate of our nearest neighbour, Venus, may have also changed on similar timescales.
