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The team that created Dolly the sheep captured the headlines, but several groups now have patents on cloning. Peter Aldhous considers how this tangled web of proprietary claims will affect the future of the technology.
One of NASA's most productive satellites is about to meet a fiery end. Henry Bortman assesses the achievements of the Compton Gamma-Ray Observatory, and considers the missions that will follow in its footsteps.
North America is about to come under intense geophysical scrutiny. Rex Dalton explains how the four projects known as EarthScope will advance our understanding of volcanoes, fault systems and earthquakes.
Pools of latent HIV, lurking in the cells of infected people, remain untouched even by powerful drug combinations. Paul Smaglik reports on how this is forcing researchers to rethink their strategies for fighting the virus.
For scientists, finding the information they want on the World-Wide Web is a hit-and-miss affair. But, as Declan Butler reports, more sophisticated and specialized search technologies are promising to change all that.
Germany's network of national research centres is trying to reinvent itself. Alison Abbott talks to Rudi Balling, the dynamic biologist charged with revitalizing one of the country's scientific underachievers.
A small band of researchers is plotting a revolution in electronics — one that exploits the spins of electrons, rather than their charges. Philip Ball profiles the emerging field of spintronics.
A biological gagging order, used in the fight against viruses, could revolutionize our understanding of genetics and development. Trisha Gura listens in on the world of gene silencing.
Just five years ago, it seemed that a single protein might reverse the rising tide of obesity. What worked for mice has not yet translated to people. But watch this space, says Marina Chicurel.