Helen Gavaghan

Chemical weapons feel the heat: The US and the USSR have reached the beginnings of an agreement to destroy their chemical weapons - Their move could lead to a worldwide ban

Technology

Technology: Computers in cockpits breed pilot complacency

Downgraded space station dismays US's partners

An expedition to Earth: Worries about the environment are pushing research into space. This time attention is not focused on distant planets. The idea is to take a long hard look at Earth itself

Red planet in sight, Bush's delight

'Poached' paper challenges peer review process

Technology

Technology: Search for the Moon's secret water

Technology

Technology: Space council may save the US's hypersonic plane

Science: Hydrogen becomes a metal under pressure

Aromatics poison ocean in new oil spills

Air authorities at odds over faulty engines

Verification fears could stall START talks