LightSquared tries to revive broadband network

A Virginia company is trying to revive its plan for a national high-speed wireless network, arguing that it can address federal regulators' concerns over interference with GPS devices.

In tackling lead pollution, fungi may be our friends

Fungi may be unexpected allies in our efforts to keep hazardous lead under control. That's based on the unexpected discovery that fungi can transform lead into its most stable mineral form. The findings reported online on ...