PhysicsCold fusion: Science's most controversial technology is backThe claim to have tamed the sun in the lab was debunked 25 years ago. So why are governments and investors now pouring money into it again? Features
SpaceHow lasers found gravitational waves – and could hunt for aliens Detecting gravitational waves is just the start, says Robert Byer: the next stops are giant space telescopes, satellite launchers and nuclear fusion power Features