A good introduction to nanotechnology with an urgent plea for debate and discussion before the nanotech revolution hits.

Jeff Howe surveys the struggling cold fusion community. He focuses on the political and financial problems encountered by researchers but notes that the trend toward utility deregulation may improve the prospects for cold fusion research.

Harvesting asteroids -- for everything from platinum to oxygen to water -- has long been the stuff of science fiction. Jo?l Glenn Brenner investigates the efforts to make it a profitable fact.

Professor Anton Zeilinger and colleagues at the Institute for Experimental Physics in Vienna have proposed a method that could increase the distance of quantum cryptographic communication tenfold.