Materials
Biologists develop transparent soil that reveals hidden world of plant roots.
Experiment provides first step toward using nanoparticles to manufacture cancer-fighting drugs.
New technologies may help reduce supersonic jet takeoff noise.
Multi-use tools may shed light on common ancestor.
Remote 'sentries' could keep watch between inspections.
Curiosity may already have done some work in paving the way for human exploration of Mars
Technical advances have influenced almost every Olympic sport.
Governments and manufacturers seek to avoid using enriched uranium.
International Space Station experiments are tackling major illnesses.
Visions of Star Trek's "replicator" in your kitchen.
New technology could change the way things are made - and the world economy.