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Deepwater Horizon: A scientist at the centre of the spill

Vernon Asper was one of the first researchers in the Gulf of Mexico to study the oil gushing out from the BP well. But it has not all been smooth sailing, reports Mark Schrope.

Hackers blind quantum cryptographers

Lasers crack commercial encryption systems, leaving no trace.

Food: The global farm

With its plentiful sun, water and land, Brazil is quickly surpassing other countries in food production and exports. But can it continue to make agricultural gains without destroying the Amazon? Jeff Tollefson reports from Brazil.

Supercomputing for the birds

Teragrid machine prepares to crunch ornithologists' data.

Citizen science: People power

Networks of human minds are taking citizen science to a new level, reports Eric Hand.

Home computer finds rare pulsar

The Einstein@Home volunteer-computing project makes its first discovery.

Nano-hairpin peeks into cells

An electrical probe in a fatty disguise could monitor neurons.

World view: Not by experts alone

More and earlier public involvement is required to steer powerful new technologies wisely, says Daniel Sarewitz.

Food: The growing problem

World hunger remains a major problem, but not for the reasons many suspect. Nature analyses the trends and the challenges of feeding 9 billion by 2050.

Big science feels the pinch in Europe

Financial hard times in member states are fuelling calls for budget savings across the board.

US survey sets cosmic priorities

Dark energy rises to the top in decadal report ranking future astronomy and astrophysics projects.

Geoengineering won't curb sea-level rise

Space mirrors and 'volcanic' blasts are not an easy fix for the rise in sea levels.

Birds flock online

Supercomputer time will help ornithologists make ecological sense of millions of records of bird sightings.

Superfast TB test slashes waiting time

Infection with tuberculosis can be diagnosed easily and accurately in less than two hours.

France digs deep for nuclear waste

Geological storage of long-lived radioactive material is moving closer to reality in Europe, says Declan Butler.