Gravitational wave detector all set
An observatory built to search for ripples in space-time is ready for action.

No time left to lose
Scientists are developing atomic clocks that will be so accurate they will lose less than a second by the time the world ends in a few billion years.

Bioterror fears muzzle open science
A group of leading scientific journals will restrict publication of research if it is felt the information could aid bioterrorists.

Leatherbacks 'extinct in 30 years'
The largest turtles in the world will be extinct within a few decades if current fishing practices continue, scientists say.